The ending of the first season of the Black Butler anime. Although it technically ends with an ambiguous Fade to Black, it's more than a little obvious what's about to happen. Fans have other ideas and love to share them in fic form.
Of course, now that there's the second season, and seeing how that ended, it looks like the writers may have been reading fanfic themselves.
Bleach fic is general rather darker than its canon, mostly due to the prevalence of disney deaths (unless you're in a backstory). Notable examples of fanworks with a far darker premise are abundant. YMMV on weather this qualifies as a Fix Fic, though.
Downfall is an example of a fic that starts out much lighter than canon — several characters that were dead in backstories are alive — only to start killing off several others in heartrending ways. Also, Unohana makes a great villain. Somehow, it still manages to feel like a fix fic.
Several Blood+ stories fix Diva killing Riku. Whether it be changing her mind of "having him for herself forever" (read: killing him) by abducting him or Riku being able to fight her off by the transformation properties of chevalier finally manifesting, it fixes that bit.
It's literally impossible to go to the The Cat Returns section of FFN and not find a Fix Fic within the first thirty seconds where Haru stays in or goes back to the Cat Kingdom and marries Baron.
Code Geass has Lelouch's unfortunate choice of words to Euphemia. Just changing the words of that one line has unleashed dozens of alt. verse stories, with the possibilities being endless. "Give me all the power and authority you possess", "Publicly announce that The Empire indeed sucks", "Make out with Cornelia, "Do the Macarena". The list goes on and on...
Notable in that the Super Robot Wars series has even tossed its hat into the ring, as it has done with so many other series: Should you fulfill a number of unlisted prerequisites or play a New Game+, you can prevent the Black Knight's betrayal and thus the entire Zero Requiem.
It's worth noting that one of the DBZ games has something of a fix, where Raditz was beaten by Picollo when he showed up and had a Heel-Face Turn which lead to him being a good guy. He later sacrifices himself to stop Vegeta and Nappa. Zarbon also has a What-If scenario dedicated to him.
Then there's craptons of "Planet Vegeta was never really destroyed/gets revived" fics. Admittedly these are loads of fun to write.
The fandom has also produced Gohan fics on the premise that "Gohan trained after the Cell Saga, and subsequently killed Buu." Most of these end up with Gohan being a Mary Sue.
If you're reading a fanfic based off the 2003 anime of Fullmetal Alchemist that takes place after The Movie, you can almost guarantee it's a "Edward and Alphonse figure out how to get back to their world" fic - with the occasional variation of "Winry or Roy or [insert preferred love interest here] goes to our world" instead.
A lot of fics based on the manga/Brotherhood continuity will have it so Ed doesn't lose his alchemy at the end. And obviously, people who prefer Ed and/or Winry with other people will often write fics eliminating their Official Couple status.
And both versions have tons of fics where Hughes's death never happened.
The most common one is having Zeon win the One Year War, thus preventing the rise of the Titans and all the subsequent wars in the Universal Century. Zeonquest is arguably a deconstruction of this, as more often than not, things have gotten worse.
Gundam 00 fans like Lockon the first to be alive in their fics...
Many Hellsing fics leave Alucard and Walter quite alive in the aftermath of the invasion, sometimes Pip too. If Millennium is not ignored, they're defeated with relatively less horrific losses, with even Iscariot's membership surviving the ordeal.
Let's say you decide to read some Naruto fanfiction. Wait, didn't that guy die in the manga? When did Sasuke come back, and why is he dating Sakura? Did Naruto just give up on winning Sakura's heart for an unexplained reason? That doesn't sound right. And was Hinata ever this bold? What just happened to the world you knew? Some audacious fan doesn't like Kishimoto's plot and believes that they can do better.
One of the most common alterations is changing the makeup of Naruto's team, which results in many subsequent changes, such as the group dynamics (the group often gets along better without clashing personalities or a Type 5 love triangle), and even the course of the story. This often happens when the author wants to ship with Naruto with a character outside Team 7, and replaces Sakura and/or Sasuke to do so.
Or alternately, they replace Naruto, putting on him on a different team altogether.
Many fics have pointed out the seemingly ridiculous usefulness of the Shadow Clone learning technique and Naruto subsequently takes multiple levels in badass.
Since the nature of the Tailed Beasts was rather ambiguous during Naruto: Part I, many fics simplify matters by making them conform to InuYasha demon standards. Now that we know of their origins and most of the questions are answered, this has decreased, although that unsatisfied minority simply use Fanon Discontinuity and ignore said revelation - which, granted, is not unheard of for the fandom to begin with.
Another specific example is Shinji And Warhammer 40 K, where the changes begin with Shinji discovering a case with some Warhammer 40,000 sourcebooks and miniatures early in his childhood. The butterfly effect takes hold with the result that every change following flows mostly logically from the previous changes, until you're halfway through the whole thing and Shinji is holding a nuclear explosion in his hand, and you wonder how the heck you ended up there.
Its "sister" series Thousand Shinji has a more direct connection with the 41st Milennium, with Shiji meeting and training under a Thousand Sons Chaos Sorcerer as a child. The story fixes a few things, only to later come back and break them in new and interesting (and often horrifying) ways.
Nobody Dies keeps Yui Ikari and Kyoko Sohryu alive through the series, which in turn manages to make Shinji reasonably well adjusted, turns Asuka into the woobie, and turns Rei into...Rei.
Puella Magi Madoka Magica's concept is that the life of a Magical Girl is very tragic and that it doesn't have a truly happy ending. As you can probably guess from that concept, a lot of fanfics are dedicated to saving someone from death. It doesn't quite help that one of the main characters is looping time over and over to save the titular character for an unknown amount of times, which simply added fuel to the fire.
Magica Madoka Veneficus Puella arguably plays with this trope. While the characters are now capable of finally getting their happy endings, the fights that take place cause collateral damage on par with your average war. Add to the fact that a potential class X-4 apocalypse is heading over the horizon and you have yourselves a problem.
A Hero, another Puella Magi Madoka Magica fanfic, is a subversion. On one hand, it adds DalekSec to help fix things. On the other, it also adds the rest of the Whoverse to screw things up even more.
Pick a Ranma fanfic, any Ranma fanfic. Any one of them that isn't set after continuity will attempt to fix one of four problems: Ranma being cursed, Ranma being engaged to Akane Tendo (or their relationship getting off to such a rocky start), Ranma being a Jerk Ass, and Ranma being raised by Genma. Ranma might still be a cursed Jerk Ass who has No Social Skills, but he'll invariably wind up stuck with a suddenly-caring Nabiki or Kasumi. Or someone else raised him, he's still cursed and engaged to Akane, and still a Jerk Ass. Or suddenly he's not cursed, and he's a jerk raised by Genma, but it's okay that he's engaged to Akane now because she's not pissed he turns into a girl! Seriously. It's always one of those four. The method by which this happens might change. It might be time travel, changing the curse, derailing Kasumi and/or Nabiki into wanting the pigtailed wonder, but if it travels the canon road, one of those four issues will quickly become noticeable.
There are some that focus on "merely" shrinking down the Love Dodecahedron. These are split between the ones that consider the Harem members removed as problems or operate on the assumption that They Can Do So Much Better.
Let's not forget the "Ranma decides to stay a girl forever/some period of time, which magically fixes everything" subgenre.
Mike Rhea is infamous for his series of Fix Fics where Ranma marries Ukyou and lives happily ever after in Kyoto with his curse cured, while Akane settles as one of Ryouga's two concubines.
Sailor MoonFix Fics used to frequently feature ways to explain why Haruka and Michiru weren't really gay. Some settled for Fixer Sues, others would twist the canon around to make Haruka turn into (or always have been) a boy. Still others would just pretend they weren't gay at all and change their relationship to merely being close friends or relatives (and this was before the dub did it for them). Other Fix Fics, conversely, focused on getting rid of Mamoru and pairing Usagi up with other characters, usually through severe Character Derailment of either of them (e.g. Mamoru as an abusive psychopath, Usagi really being in love with Seiya... or even Haruka!). Others just thought he got off too easy post-breakup in R and devised further punishments for him to suffer through.
Generally, Seiya and Rei are the two characters most often switched out for Mamoru in fix-it fics. These fics are almost exclusively based on the anime, since manga Mamoru wasn't such a jerk and Seiya's crush was severely smaller in the manga.
Also, Nephrite comes back from the dead a lot, to Naru's joy. Umino gets stiffed. Sometimes they take pity on him and simply have Nephrite come back from the dead but accept that Naru moved on.
Oh, oh! Don't forget "ChibiUsa doesn't exist" fics! Either some twist of fate makes Usagi have a different child (who fits the author's appeal better) or ChibiUsa is just removed, with no regards to the fact that she's vitally important to three seasons. Sometimes ChibiUsa is killed off so she can still save the world with Usagi, but isn't around to annoy the author.
The same thing happens in the Vision of Escaflowne fandom - it sometimes feels as if every third Escaflowne fanfic written retcons the ending to push Hitomi back into Van's arms regardless of whether or not it makes the slightest bit of sense.
Weiß Kreuz fanfiction mostly ignores everything after the end of the first anime season. Given what happens next, this isn't entirely surprising. More deliberate examples can be seen in the sheer number of fanfics out there where Aya cures Youji's amnesia and 'saves' him from the horrible fate of marriage to a girl through the Power of Love.
The most common sort of fics for X1999 Seishirou and Subaru seems to try to find a way for Seishirou to not die/not be a bastard.
Practically every Yu-Gi-Oh! fanfic set after the Grand Finale will bring Atemu back from the afterlife or have the Ceremonial Duel between him and Yugi proceed differently. This becomes a virtual guarantee if the fanfic writer ships Atemu/Yugi. And that's not counting the number of fics that bring all the Yamis back and give them their own bodies with little explanation...
Sonic X: Dark Chaos delves into this territory by fixing the Flanderization of the characters in Anime/Sonic X, especially in the rewrite. Knuckles is not a hot-headed idiot, but an honorable warrior with strong moral standards and surprising tactical knowhow. Amy isn't a YandereJerkass, but a compassionate and friendly girl who bravely defends the people she cares about. Chris isn't a whiny brat, but a Badass who uses his eighteen year-old smarts to great effect. And although Sonic is still The Ace and a bumbling Idiot Hero, the story puts his generous and heroic nature in the forefront.
The Trainer From A Far Away Land acts as a Fix Fic for the Pokémon anime, for people frustrated with Ash's Not Allowed to Grow Up status and Flanderization into an Idiot Hero. While most Fix Fic make Ash/Satoshi into a badass uber-genius, this fic maintains Ash/Satoshi's childishness and thoughtlessness but has Satoshi learn from his past experiences. He grew as a person along with growing older with his Aura powers from the eighth movie not being forgotten. Unfortunately, he is Out of Focus, and it's a Dead Fic besides — the author actually wrote it because N had not yet appeared in the anime at that time, despite being a major character of Pokémon Black and White. Thus, he stopped updating once N actually made his anime debut.
Although the above has only three chapters and is unlikely to be updated anytime soon, fans can still be entertained by two other, extremely well-written, Fix Fics — Ashes Of The Past, and the A New Chance Series. Both of them make Ash not be an Idiot Hero, but in different ways: the former is a Peggy Sue fic, thus providing a logical explanation for this, and for the Adaptational Badass status of every single character, whereas the latter simply diverges from canon after the fifth movie, by giving Ash a legendary Pokémon in a way that actually makes sense, and uses this to have him mature as a trainer in a believable manner.
Chick Tracts have become a magnet for Remix Comics and Fix Fic of this sort, thanks to their endemic research failures. Most of them completely change the worldview espoused by the comic, but there are some exceptions: Morrakiu's Dramatic Reading of this tract is just as anti-communist as the original, but is far more intelligent about it.
Fix Fic of One More Day, which usually involves MJ and Peter kicking Mephisto's ass and/or a guest appearance by Doctor Strange/The Avengers.
The return of Hal Jordan as Green Lantern was much the same, using elements from more than one fic written by outraged GL fans after the Parallax arc and the (temporary) destruction of the Corps.
The New 52 reboot has many fans trying to find a way to go back to the old continuity. Fics range from It's a hallucination caused by a villain to Donna Troy refusing to be erased from existence again and returning to dismantle the universe.
Superhero comics fandom has a fix fic for any minor change in character or plot that you didn't like in the last decade, but an unusually large number popped up after the death of Stephanie "The Spoiler" Brown either reviving or vindicating her. The fact that Chuck Dixon seemed to take a leaf — if not his entire plot and most of the angst — from the fanficcer's books when he brought her back a few years later didn't help matters much.
Damian Wayne's death in the New 52 has spawned quite a few. Usually involving the use of a Lazarus Pit, for obvious reasons.
With bothversions of Peter Parker now dead, there's naturally a lot of this floating about. In Ultimate's case, these mostly consist of Peter returning to life and taking the name Ben Reilly, since his replacement, Miles Morales, is almost universally loved. And in the case of 616, beating the crap out Otto Octavius, who is a more controversial replacement Spider-Man.
Empath: The Luckiest Smurf revisits Papa Smurf's infatuation with Smurfette from "Romeo And Smurfette" (both from the comic books and the cartoon show) and puts the issue entirely to rest by Smurfette telling him that she could never love him the same way that she would the other Smurfs. Of course, an alternate timeline tale has her confess her love for Papa Smurf, leading to a May-December Romance that eventually has most of the entire village revolting against it.
Not a Typical Civil War is not just a fix fic about Marvel's Civil War, it actually has instructions by the author on how to fix stories every chapter. According to him, he does little fix fics in his mind all the time, and this is just one of them he's decided to write.
Barely a week after Tim Burton's Alice in Wonderland movie came out in 2010, Fanfiction.Net was flooded (thirty fanfics in the new section and at least that many more in the general Alice in Wonderland section) with fan authors who either have Alice stay in Wonderland with the Hatter, or have him go to her.
Fix-fics of The Avengers where Coulson doesn't actually die and was actually just in a coma, because Fury tricked the Avengers into thinking he died to give them a "push" are so common that if you didn't watch the movie, you'd think it was canon — hell, fics where he actually is dead as per the events of the movie are a rarity, and even then he is often brought back to life with comic book style shenanigans. The fact that the audience never actually sees the paramedics call the time of death, that the events of the movie (specifically, the revelation that Fury dipped Coulson's Captain America trading cards in blood offscreen and showed them to Cap as to make his death hit them all the harder) actually hint that the former explanation could very well be canon, and that the actor has signed up for several more movies with Marvel, make this trend far more plausible than most of the examples on this page. Now that Coulson is starring in Agents of S.H.I.E.L.D., those writers who bring him back to life or have him alive in their fics can do whatever they want.
Many, if not most, Brokeback Mountain fics undo Jack's death and give him and Ennis a happy ending.
Unsurprisingly many a Carrie fanfic involves the prank never happening.
John Tucker Must Die fanfiction may result in Kate either staying with, or getting back with John instead of the possible relationship with Scott the ending suggests.
Once upon a Time in Mexico fandom features far too many fics involving Sands magically getting his sight back. Or to be more specific, his actual eyes.
Several Rocky Horror Picture Show fanfics involve Dr. Frank N Furter being brought back to life or are simply AU fanfics in which he doesn't die in the first place.
More than a few pieces of Scream fanfiction bring back, in addition to Sidney, Gale and Dewey, Kirby from Scream 4, who like Agent Coulson above is never actually officially confirmed as gone in the movie. And in most cases she does not get Killed Off for Real by the end.
Out of the 900 or so fanfics for The Social Network, approximately 85% are fix-it fics for Mark and Eduardo. Just check out the ao3 page.
Slash Fic fans of the 2009 Star Trek film who support Kirk/Spock tend to have Uhura a) end her relationship with Spock on amicable terms b) get dumped by Spock c) run off with Bones, Scotty, Chekov...any one else with a penis... or d) get eaten by the Gorn. It's starting to get a bit ridiculous.
Sidereal and Tyranny Reborn are Fix Fics where the author explicitly states that they are AU according to how he wanted the franchise to go and specifically named Dark Empire, the Jedi Academy trilogy (which these stories are specifically to override), New Jedi Order, Dark Nest, and Legacy of the Force as what he was avoiding. (Sidereal begins five weeks after the end of The Thrawn Trilogy.) This one from a different author is more of a straight AU, but has a specific point that it takes off from (right after The Truce at Bakura) and goes in an intentionally far different direction from the profic. (In general both authors seem to reject the idea of Luke Skywalker, "tame Jedi.")
Phantom Menace: The Unauthorized Rewrite is the first in a series of three attempts by a fan to squash the prequel trilogy into a more palatable substance in novel form. Read: No Jar-Jar, no Midi-Chlorians, no 14-year-old elected Queens and no wee Anakin staring wide-eyed at anything and everything. It's pretty dark with a major focus on Dooku and pre-cyborg Grievous even in the first volume.
Star Wars: Cerulean retcons the events of the Revenge of the Sith film: Bly disobeyed Order 66 and instead of killing Aayla Secura, he just faked her death. Part 1, prequel.
Legacy of the Sith is a fanfic series that replaces the last two books of the New Jedi Order and continues on afterwards, with the premise being that Anakin Solo was not killed by the Yuuzhan Vong but rather captured and brainwashed, and has just managed to escape. It wraps up the NJO in a manner largely reminiscent of the canon (though with different characters filling different specific roles) and then goes in a wildly divergent course. It's awesome.
There was a short fic in Russian (a translation to English exists) about how the events of the Naboo occupation were distorted when the First Episode was made (due to Historical Hero Upgrade, Rule of Cool, and certain other things featured on this site). Instead of a pointless dispute over taxing a remote world, for example, you have a dispute over a very profitable drug trade, Watto was ready to accept dataries, but only in cash, and the Federation droids didn't shut down... actually, they defeated the Gungans right when the station blew up, and simply received no pursuit orders.
After Revenge of the Sith, there was a huge influx of fix fics resurecting Padme, usually revealing she faked her death to protect Luke and Leia and help with the resistance against Vader, who she usually still loves, unless it's an Obidala fic.
Sucker Punch's fanfics have Babydoll surviving the lobotomy with memories, or avoiding it altogether. There are also a few with Rocket surviving being stabbed (which is understandable since it was never shown where she was stabbed and may not have been a fatal injury)
Already there are a vast number of X-Men: First Class fics where what is commonly referred to as 'the divorce' never happened, and Erik and Charles lived happily ever after. Many of these also retcon Charles into not having been paralysed. The fandom literally calls them Fix-Its and they can range from just reworking the beach scene so that the divorce never happens, to developing a completely alternate timeline that come about through what-if? situations.
9 fan fiction has a good number of stories that have the characters that died being revived in one way or another.
In the Animorphs series, quite a few Fix Fics involve a complete rewriting of the final part wherein Rachel and Tom don't die and Jake and the rest magically recover from their traumas during the war. Of course, this kind of misses the point that K.A. Applegate was trying make in writing the series, namely that War Is Hell and many soldiers are damaged beyond repair even after the war is done.
There are also a few fics where Elfangor didn't die after the crash and was able to lead the Animorphs. Elfangor's Folly is a particularly well-written example.
Much of the Bridge to Terabithia fixfics have Leslie not dying, or as the fans call it, LDD, which stands for Leslie Didn't/Doesn't Die.
An odd version in some fics for The Dresden Files is to ignore the end of Changes and subsequently "Ghost Story". This may be less due to dislike of the events therein, and more about the fact that Changes pretty much obliterated the Status Quo, and/so it's hard to tell where the story is going to go after Ghost Story.
The Distant Finale epilogue is either ignored or Fanon Discontinuity to many fans, mostly to get around the issue of their pet ships not sailing. This is made easier by JKR saying she regrets several of those cannon pairings, especially Hermione/Ron - but given that most fans don't seem to know that and that the other pairings are ignored just as easily, it's a wash. The fact that she said in retrospect she would have gone for Harry/Hermione is probably why it isn't well-known, because that's still sinking other ships.
There is at least one fic which states that Dumbledore slipped Harry and Ginny some potion to make them fall in love... and the epilogue is a delusion by Ginny, whom this potion brought to St. Mungos.
The Severus Snape fans tend to write stories that either ignore Deathly Hallows entirely, or simply the epilogue.
Let's not forget all the people Ret Conning Sirius' death after Order of the Phoenix.
This happens a lot, especially after Deathly Hallows, where the story seems to mostly fit into canon but where Snape, Fred or some other popular character is just inexplicably alive. It's not even a traditional "here's how they lived" sort of thing, they're just alive because the author didn't want them to be dead.
My Immortal actually has a Fix Chapter added by a hacker, in which Ebony dies and everything returns to how it was in canon...well, almost everything:
And, because the replacement author also likes to screw around with canon, Draco and Hermione fled the scene and got married.
Many fics save characters who died in The Lord of the Rings. These stories often insert a fan character, who prevents the death by protecting or healing the victim. Then the pair feel the Florence Nightingale Effect and find love. Most of these Fix Fics rescue Boromir or Haldir (though Haldir only died in the movies), but a few stories save minor characters such as Théodred, son of Théoden.
The Last Ringbearer, as stated by the author, originated as an exercise in trying to reconcile/explain The Lord of the Rings in the terms of a 'real' world (in his words, give it a "full exoneration"). Too bad he hasn't read The Silmarillion.
One fix for The Silmarillion is to ship Túrin with Finduilas, which would prevent the whole Surprise Incest plot. Finduilas already loves Túrin, so the fix is if Túrin returns that love. Of Turin And Finduilas makes that fix.
Percy Jackson and the Olympians has a staggering amount of these, almost all of them either regarding Luke and un-killing him, Thalia and her quitting the hunters in order to be able to be romantically involved, or Rachel Elizabeth Dare being able to date someone even though she too cannot become romantically involved.
The Redwall series has quite a few Fix Fics dedicated to reviving Rose, Martin's love interest. Some try hard to keep it within Canon and provide a legitimate reason for her being Only Mostly Dead. A Mask and a Song is an example of such a story.
Hundreds of Fix Fics were written and circulated during the Great Hiatus of Sherlock Holmes stories, after Arthur Conan Doyle released "The Final Problem" in an attempt to dispose of a character he'd grown heartily sick of writing. Doyle's displeasure with the low quality of such fanfiction is thought to have contributed (along with Money, Dear Boy) to his reluctant resurrection of the character: if Holmes had to return, at least he'd do it himself and not leave the task in the hands of hack amateurs.
A number of Johann Wolfgang von Goethe's literary peers were troubled by the ending to his 1787 novel, Die Leiden des Jungen Werther (The Sorrows of Young Werther) and the behavior that it was inspiring among many of its youthful fans. One of them, a man named Friedrich Nicolai, wrote a satirical alternate ending called Die Freuden des Jungen Werthers (The Joys of Young Werther), in which Werther's attempt to kill himself is foiled by the husband of the woman he loved, who withdraws out of friendship and allows Werther to pursue her; he eventually marries her, sheds all of the "storm and strife" of his youth, and becomes a respected gentleman in society. Goethe hated this treatment of his work and wrote a poem in which Nicolai desecrates Werther's grave, starting a literary war between them that lasted the rest of Goethe's Nicolai's life.
Nicolai, who died in 1811, was one of the leading German literary critics of the Enlightenment, and belonged to an older literary generation. He was rather sceptical of the new movements like Sturm und Drang and Romanticism. Die Freuden des Jungen Werthers is therefore correctly described as a parody, and it is worth noting that Goethe not only was angry at Nicolai specifically, but was violently opposed to parodies in general. Nicolai meanwhile not only parodied Goethe, but also the folk songs that were then being eagerly collected by the early Romantics.
There is also Luminosity, which fixes Twilight, period. Utilizing a simple What If? scenario where Bella was "derailed" into a more rational, thinking person turned much of the Hatedom of one of the most divisive modern literary works into fans. Many readers should be warned that reading this fic might make them sympathetic to the actual franchise.
Post-musicalverse fics make sure Fiyero is turned human again (often without explanation) as fast as possible.
Similarly Gelphie (Glinda/Elphaba) shippers like to alter it so that Elphaba's death at the end Wicked was faked or simply just have Elphaba not leave Glinda at the Emerald City. Glinda finding Elphaba is also a common fic.
Many fans dissatisfied with Susan Pevensie's fate at the end of The Chronicles of Narnia have written continuation stories about her life after Narnia. C.S. Lewis himself encouraged this by saying that Susan's story was not finished yet.
The Lizzie Bennet Diaries qualifies toward the end. At the time Pride and Prejudice was written, Lydia marrying George Wickham was the best possible ending for her, as otherwise she'd be seen as "tainted" and never be able to marry someone better. By moving the story to modern times, Diaries gets rid of that problem, and she splits up with George for good. Also, Bing isn't quite so Easily Forgiven for dumping Jane just because his friend told him to.
The Storm Dragons is a well-written fanfic series presenting the world of Inheritance Cycle from the perspective of a family of Dragons, the titular storm dragons, and from Galbatorix. Turns the canon series on its head, and worth a read at least once.
As the World Turns: Many fanfics change the Death of the Hypotenuse/Maybe Ever After ending of the Noah/Luke/Reid love triangle. Rather, Reid doesn't die and Luke either stays with Reid or breaks up with him and gets back together with Noah. Some even go as far as having Luke and Noah break up a lot sooner or not having them break up at all with Luke never getting involved with Reid.
Beauty and the Beast (the 1980s TV series) fans call a version of this "SND" -- "She Never Died". They are, of course, referring to Catherine's death at the end of Season 2. All subsequent canon is disregarded, except that Gabriel may be dealt with, if he is considered to exist at all. If so, Catherine usually gives up living Above and moves into the Tunnels for good, living Happily Ever After with Vincent and their child; if not, then the entire Gabriel sub-plot is ignored, and possibly much of season 2, and the characters go on as they did in the earlier episodes, usually with Catherine and Vincent sorting out their star-crossed love and settling down together.
There are a pair of fixfics focused on fixfic-ing the Buffy the Vampire Slayer by exploring the premise of Xander wearing an Obi-Wan Kenobi costume during the Halloween episode, not a soldier costume. Example: Part 1 and Part 2. (Part 2 is a work in progress).
There's a Buffyverse fixfic listed on the Fan Fic Recommendations page, I Am What I Am, wherein Xander wears a different Halloween costume, and really is able to fix everything. And when I say everything, I mean literally everything, because he has the memories of a 97-year-old Xander who remembers almost everything bad that happened to any of the Buffyverse characters.
There are dozens of fanfics that fix the death of Tara Maclay.
There are fics where Warren is killed or jailed long before he can shoot Tara.
There are fics where a helpful time traveler from the future saves Tara.
There are fics where a vengeance demon wish fixes things. (This doesn't make sense, since vengeance demon wishes always make things worse.)
There are crossovers with Highlander, in which Tara is an immortal, so the bullet wound doesn't kill her.
There are crossovers with Doctor Who, in which Tara is a Time Lord, so the bullet wound causes her to regenerate.
There used to be a lot of shipping 'fics that were sort of fix-fics by default, because the author would rewrite the series based upon the notion that Buffy and Willow or Faith were a couple and go from there. The end result was usually a much happier show in one way or another.
One fic changed some of the events of season 3, so that Wesley and Giles were in a relationship and Wesley tried to help Faith instead of having the council take her away; though he did ask them for help, they were a lot more civil about it. Played With a bit, since it actually seemed like Faith would accept their help, but it was just an act and she ended up working for Mayor Wilkins anyway. Although, Wesley actually chose to stay in Sunnydale instead of deciding to go back to England (and ending up in LA.)
After 'The End of Time', another kind of Fix Fic emerged which repaired both it and "Journey's End" in one fell swoop; when Ten regenerates, his mind/soul doesn't die. Instead it gets transferred into the body of 10.5, bringing 10 back to life and reuniting him with Rose.
The number of Dollhouse fics that retcon Bennett's murder is particularly impressive.
Dyce's "Horseshoe Nail" series fixes both Book and Wash's deaths through the Butterfly Effect of Jayne becoming closer to River. Somehow it works.
There's also Forward, which also undoes Wash and Book's deaths, though in a much more straightforward Retcon.
Forever Knight ended with the apparent death or imminent death of most of the principal characters. Because of the fade-to-black ambiguity of the last scene of the series finale, fan writers can often contrive ways to let the supposedly dead characters survive. Another option for "Virtual Fourth Seasons" is to continue the series as if the last two episodes didn't happen.
Glee The Virtual Season Four, from the same fandom, is written as a backlash to season three and takes some elements of the real season four while repairing some of the things it and preceding seasons did. For example, the mass ship sinking of "The Breakup" is averted; the characters still have their problems with separation and loneliness, but deal with it in other ways (some better than others).
Heroes: This Peter/Claude fan community has a bunch of Fan Fic that treats Peter Petrelli as a competent person while keeping the naivete and innocence that are an integral part of his character. Essentially, they make him a much more interesting character than canon has of late.
There are also a bunch of fics out there that stop or undo Elle's death and she runs off to live with Sylar (despite having tried to kill her again) or Peter, or Claire happily ever after. There are also stories where she shows up alive and well at the Sullivan brothers carnival. Elle is quite popular in this because writers like to undo what some feel were poor handling of her character (Other examples include: She never walks into Pinehearst or she is rescued before Sylar gets to her. And then there are the stories where she is revived by means of Claire's blood
Due to a controversial cast change that wrote out the main character due to Real Life Writes the Plot, House of Anubis has a lot of fanfics revolving around season 3 that has Nina Martin either return in a rewrite of season 3 (she had to leave the show due as the actress was suffering from Real Life Writes the Plot complications) or return for a fan-imagined season 4, or reunite with Fabian in a Distant Finale years later and get back together again. Unsurprisingly, most of these fics were written by Nina/Fabian shippers that wanted them to stay together. There are also fics that make Eddie/Patricia stays together for the whole of season 3 instead of breaking up early in the season.
Within hours after the final of How I Met Your Mother aired, there already were many attempts to rewrite the controversal ending especially making Barney and Robin stay together or get back together after the divorce, with Ellie being either 1) a miracle baby or 2) adopted by Barney and Robin, and either having the titular mother survive or having her still die(albeit in a way that demonstrates more closure), but Ted either never remarrying or ending up with a different person at the end(usually either a Original Character or Victoria, the first candidate for the mother, both of whom are popular choices for this). The alternate ending utilizes many of these ideas such as having the mother never get sick in the first place and implying Barney and Robin to have gotten back together after reconnecting at Ted's wedding.
iKiss: Carly and Freddie kiss and not Sam and Freddie.
iSpeed Date: Freddie notices Sam and runs after her, not the actual ending with Carly and Freddie dancing after not noticing Sam.
iOMG: Adding a post-script which solves the cliff-hanger. Freddie gently letting down Sam then going after Carly or having Carly come after him, the same but with Carly going after Sam, or just having Freddie respond to Sam positively.
Kamen Rider Kiva has seen a large number of fic writers go with the AU side of the coin, disregarding everything from episode 43 onward. This has happened with Kamen Rider in the past, as many seasons prefer whipping out the Kill 'em All method of storytelling near the endgame.
And then there's outright editing the footage to make the show be watched in chronological order... which leads to a very interesting experience, with a Kamen Rider show devoid of Riders for the first three episodes, a great deal of time put into character development and world building, and calling it Kamen Rider IXA.
Person of Interest has had many fics dealing with undoing Detective Carter's death in season 3.
Power Rangers Zeo. With one well remembered couple throughout the seasons (Tommy/Kim), which ended because of a "Dear John" Letter sent by Kimberly, there are plenty of fics reuniting them that claimed it was a fake (the person responsible usually being Kat), or that Kim was hiding the real reason for the breakup.
Most "virtual sixth seasons" of Sliders follow Rembrandt as he earns a happy ending by separating Quinn and Mallory, freeing Colin from the vortex, and finishing off the Kromaggs for good. And this one story, "Slide Effects," has Quinn Mallory waking up to find time has been rewound to the Pilot, with only Quinn remembering sliding, and cheerfully resets the show to just after Season 2.
A classic Star Trek example, fixing an apparent continuity glitch — in the film Star Trek II: The Wrath of Khan, Khan and Chekov recognize each other upon meeting. However, "Space Seed", the episode of Star Trek: The Original Series in which Khan appears, is a first season episode, and Chekov did not join the cast of the show until the second season. The semi-official retcon (not explained in any of the shows or movies, but widely propagated by producers and actors in convention appearances) is that Chekov was on the Enterprise at that time, he just wasn't part of the bridge crew yet and thus didn't appear on screen. A very funny fanfic distributed in print ('zines, photocopies, etc.) not long after the movie came out expands on that, envisioning Khan and Chekov bumping into each other in the bathroom. Sillier versions have Khan vowing revenge on Chekov for making him wait for the cubicle.
In response to two different elements of the Star Trek: Voyager finale, fans created two very popular Fix Fics: Voyager Season 7.5 and Voyager Virtual Seasons 8 and 9. The former started from before the hated Chakotay/Seven Canon Ship got started, rewriting the last half of the season, allowing them to completely avoid the finale. The latter kept everything including the final scene, but then used a Diabolus ex Machina to subvert the Happy Ending (itself a Deus ex Machina) for a couple more seasons.
Currently these guys are working on rewriting the whole show.
The modern novel continuity from the Star Trek Expanded Universe gives us the String Theory trilogy. Why is Janeway so out of character at the beginning of Season Five, and other points later on? Why did the Nacene Caretaker species not show up after season two? Why is Voyager in top condition as of the later seasons despite dwindling supplies? Why did Kes suddenly turn bitter and evil in "Fury"? This trilogy fills in all the gaps, and helps make Voyager's continuity a lot easier to swallow. However, some readers have suggested that the answers given here are weirder than the possibleplot holesthey try to plug, others that the things being fixed weren’t too much of a distraction anyway.
For some time after Team Knight Rider aired, everyKnight Rider fanfic would include KITT writing off the events of that series as a bad dream. Insulting the Ford Motor Company was also par for the course.
Many, many Torchwood fics, which undo (from the end of series 2) Tosh and Owen's deaths. And an even larger raft of post-series 3 fics which address Ianto's death and Jack's actions regarding his grandson. One large and vocal subset of these fans have even created a campaign and a website to coordinate efforts to petition The Powers That Be to bring Ianto back. Unlike the series creators or one main actor's comments in interviews, there are well over a thousand registered members — with more joining daily.
It's become quite popular in The Vampire Diaries fanfiction to see Anna's death either erased or having her revived. No one dead character, not even Lexi or Alaric has gotten this kind of love, even if the show's writers want to pretend that she doesn't exist.
A popular theme of The X-Files fanfics is to explain away the fates of Scully's children: some fics bring Emily back to life, even more explain away putting William up for adoption (it didn't happen or they get him back), and some do both.
A Whole New World basically undoes the events of the Boy Meets World series finale, but in a way that makes sense and explores things the original canon long since abandoned.
Foob's Paradise can only be described as a Fix Comic that seeks to address the very bitter feelings many fans have had about the last few years of For Better or for Worse and its ending. Namely by portraying the final canonical plotline about Liz's wedding as the delirious fantasy of a broken Elly Patterson while the webcomic's plot deals with what "really" happened, mostly from Liz's perspective.
Foobar is a Fix comic that assumes that the new-runs are the result of a magic spell Elly cast immediately after Liz's wedding in order to fix everything that she thinks went wrong with her life; the problem is that the characters born before 1979 also have their 2008 personalities in their 1981 bodies leaving the rest to fend for themselves in an adult-free 2010. Both factions are communicating by April's ability to time travel and are trying to resist this.
The strip is celebrating the transition to straight reprints by having April and the other characters call Elly out and forcing her to send them back to their 2010 lives. Elly agrees to this because she realizes that she can't actually change the past to any great extent. The end result is that while the other characters use the insights they derived from the change to better themselves, Elly, who is at this point been divorced for six months, is more or less isolated, having learned precisely nothing except that she was destined to be a housewife. Eventually, public discussion of the time warp leaves her trapped in her own body, endlessly replaying the past.
Finally, a group of bloggers have written unofficial continuations of the monthly letters that used to appear on the website called The New Retcons; the final development is Elly Patterson's death as the result of a bungled attempt to murder John by a third party; the logic behind that is the strip is going into straight reprints because Elly is dead and we're seeing her life flash before our eyes.
One of those bloggers went on to write The Unauthorized Liography of the Patterson Family, and while more a backstory fic, the ending falls squarely under Fix Fic. Michael realizes he's become Elly, seeks therapy, and becomes a Cool Old Guy, Liz realizes she made a mistake marrying Anthony, divorces (with Therese, of all people acting as her attorney), and marries Warren, April reconciles with her siblings, and John and Elly...die within minutes of each other from bad eating habits. Hey, for the fans, that was an improvement.
An awful lot of BattleTech fic falls into this category. Mostly, it comes off as a negative reaction to story developments, with many fics that could be summarised as "Faction I Like didn't do Thing I Didn't Like and instead did Thing I Think Is Cooler, like beating up Faction I Don't Like." This is especially common with fans of the Taurian Concordat
Older Than Steam: You also have, back in the 17th century, Nahum Tate rewriting King Lear to give it a happy ending, keeping Cordelia alive and marrying her off to Edgar. (Incidentally, Tate's version was incredibly popular; it kept Shakespeare's original off the stage for decades.)
Well, William Davenant and David Garrick thought it was a good idea, too... Even William Shakespeare himself reportedly wrote an alternative ending, long since lost.
In 1611 John Fletcher wrote The Woman's Prize, or the Tamer Tamed, a sequel to The Taming of the Shrew in which the gender tables are turned and Petruchio the "tamer" is "tamed" by his second wife Maria.
A lot of Spring Awakening fans fix Moritz's death by having him walk Ilse home instead of staying and shooting himself. Unfortunately for fans who want to fix the other death in the musical, it's really hard to "fix" a botched abortion.
Many fans who were upset by the implied fates of certain Chrono Trigger characters in Chrono Cross set about rectifying this in fic form. Of course, given the Chrono series' core conceit of time travel and parallel dimensions, it practically invites this.
Fate/stay night: Post-Fate fics where either Saber returns to modern Japan or Shirou time travels to Arthurian Britain are very common among Shirou/Saber shippers.
And then, we have the fanfics for those irritated by Aeris/Aerith's death.
Fan-made remakes of older PC games sometimes do this. Among the more notable examples are AGD Interactive's remakes of King's Quest II and King's Quest III. Besides expanding on the plot, characterizations, and backstories of both games, which were made at a time when technological limitations simply did not allow for much by the way of storytelling, they also fill in the plot hole of who imprisoned Valenice in the first place and why, explain how Graham knew about lifting the curse on the winged horse, and provide a way for Alexander to learn about what happens to Manhannan's slaves, among others. Most ambitiously, in both games they gave the foundations for a Myth Arc spanning the entire King's Quest series and explaining why Daventry's royal family had such a knack for getting on the bad side of evil magic-users.
Thanks to the feelings of many gamers towards the ending, Mass Effect 3 is starting to have many fics that are trying to fix this problem.
There's some Mega Man X fic that doesn't try to "fix" the story as much as it tries to have it make sense, like explaining how a computer virus can actually affect a physical environment (even humans) or how reploid "souls" can go back to their bodies. Besides that, there's a lot of fic splintering off from X5/X6, which had multiple endings and was a pretty important point in the series.
Other stories include ones where Iris never died, ones where Gate lives and gets together with Alia, ones where the author's favorite Maverick never died and became good again ...
For a while, there was a common fanon theory that everyone in the Mega Man universe was killed during the 100-year gap. A few authors tried to fix this by having them plausibly disappear off radar or get new bodies.
Most of the "common sense" problems of the X and Zero series actually seem to vanish if one assumes as many Capcom games as humanly possibly are actually part of the same continuity, and the "big evils" that keep showing up are all related, at least in terms of their "stuff of evil". Psycho energy as the basis of the maverick virus makes a lot of sense, if you're not too terrible worried about maintaining the serious tone of the later games.
There's one fic out there for Persona 3 that does this - but from a gameplay standpoint, it actually makes sense. After finishing the game, a New Game+ option appears, allowing you to keep your level, Persona Compendium, all items and social stats - but forcing the player to stay on the rails when all they really want to do is change what they know is going to happen. Of course, opinions vary, but all in all the "Fixed" elements were handled quite well. Shinji is saved, though it is explicitly mentioned that the side effects of his medication mean he will die within a year. Minato lives by holding back Erebus with the combined power of his social links, though he mentions he doesn't know if that will hold back The Fall forever.
There are already several fics out there that "fix" the ending of Portal 2 in which Wheatley is either not sent out into space, or brought back to Earth some time after the game's end. A particularly good one can be found here.
There's at least one Warcraft fanfic in which Taretha Foxton leaves Durnholde Keep with Thrall and survives as a result. There are also a few that address the chemistry between Jaina and Thrall during Warcraft 3 (and the expansion) that even Thrall's voice actor doesn't want to admit to. And that's not even getting into events with Garrosh.
felix-the-judge's fangame Home is this for Off. It basically retells the game from the point of view of the Judge, who makes sure that the events of the original game turn out better by preventing the Batter from killing the Guardians. Instead, the Judge "cures" the Guardians (driving a spectre out of Dedan to make him friendly and reasonable, splitting Valerie and Japhet without killing either of them, etc) and frustrates the Batter at every turn. It's best symbolized by the title screen: where Off has a big red X, Home has a big green plus sign.
Gaige's ECHO Logs, a Borderlands 2Script Fic, is a downplayed example. It hews extremely closely to canon, but still makes an effort to smooth out a few of the plotholes in the original. The most obvious would be the question of why, if the Vault Hunters all had their action skills in the opening cinematic, they had to level up and learn them again (their ECHO devices were destroyed, and they had to get new ones). The author later did a companion story which explains why Krieg wasn't present in the story until the events of the Tiny Tina DLC (which confirms that all six Vault Hunters are together in a group).
Surpassing the novel itself isn't really that much of an achievement, considering how stupid and awful it was. Some people are speculating, though, that this fic could surpass the game.
Fire Emblem Awakening fanfic Pretender addresses things that the video game Hand Waves for things never explained in story, such as Chrom never noticing that Robin had Plegian-style robes and had the mark of Grima on their hand. In fic, Chrom takes the time to study the marks on Robin's hand and clothes and finds out Robin's origins long before The Reveal.
Originally, in Sonic Adventure 2, Shadow the Hedgehog fell into the Earth's atmosphere and "died" after fighting the Biolizard with Sonic's help. Since then, Eggman resurrected Shadow, who'd develop amnesia, and even went far as to develop Shadow androids to confuse Shadow, and in turn, the player. So, one fanfic author developed two fanfics explaining the alternate ending where Sonic actually saves Shadow from falling into the Earth. That way, Shadow won't be able to whine, complain, and mope about his past, instead vowing to protect Sonic and friends as his new friends, while Eggman doesn't build the Shadow androids at all to confuse Shadow and the player. The first fanfic takes place through Shadow's perspective, while the second takes place through Cream's perspective, to explain Cream the Rabbit's addition to the story.
The same author wrote an alternate version of the same story in Sonic Adventure to correct the problems with not only Sonic's character-development, but also every other Sonic character, including Big the Cat as well as two new additions, Cream and Rouge. The fic is told through Sonic, Cream, and Rouge's perspectives, similar to Sonic Adventure's multiple-perspective storyline. In the alternate version, each character goes through a moment of development; Sonic struggles to learn what it means to rely on friends just as much as to protect them, while Cream learns the value of growing-up and protecting the people she cares for, and Rouge becomes less of a dirty slut and more of an honorable thief with compassion for all life.
The Star Trek Online Foundry mission "Divide ut Regnes", for the infamous official storyline mission "Divide et Impera". It uses a Stable Time Loop to explain why Admiral Zelle is still standing motionless in Admiral T'nae's office after the Undine impersonating her uses you to get her into a Romulan medical facility to Kill and Replace its commander, and Mind Control to explain the more-blatant-than-usual Railroading. It also does some Arc Welding, incorporating little details from other missions' briefings to make the rather disjointed storyline hang together better.e.g. Why is the Romulan fleet out of position? They're responding to your Time Traveling starship hitting one of their facilities.
Red Dead Virgo wasn't this originally, but for a time became this after certain events in the canon. To quote the author: "Stay tuned for updates to the RDV-verse, where everything is actually pretty fucking happy and functional and sane. Who woulda thunk!"
Girl Genius fanfic Well Met at Mechanicsburg is an example of a Fix Fic done well. It revolves around Barry joining forces with Klaus more than a decade prior to the canon storyline and in doing so manages to fix pretty much everything while addressing major plot points and relationships from the canon story.
There's loads for "The ReviewMust Go On", whether it's Donnie's friends refusing to let him go or trying to explain why Critic had suddenly turned evil.
Galaxy Rangers has a very small fandom, but there are at least four different takes on how Eliza is rescued. It's rarely a matter of "if".
There are a few fanfics of the Arthur episode, "Arthur's Big Hit", where both Arthur and D.W. get punished for their actions, as opposed to just Arthur.
Avatar: The Last Airbender fandom has Canon Zutara, and there are too many fics to count that, using various means, have made it their mission to correct what they see as the biggest mistake of the series.
Some Codename:Kids Next Door fan fics portray the Splinter Cell being an actual villain organization bent on ridding the world of all adults instead of being cover-up for the GKND, either with the GKND still coincidentally in existance, or removing the GKND entirely. The KND Splinter Cell's nature and motives vary depending on the author writing the fanfic. One example is titled Operation SPLINTER CELL.
Many Family Guy fic, mostly dealing with Meg getting revenge for all the abuse she had to suffer from her family. As well as a few having Brian shoot back against those who wrong him, specifically Quagmire after his "The Reason You Suck" Speech.
The Pony POV Series isn't solely a Fix Fic, but the author typically does major edits with every new episode to intergrate the canon into the story, in the process providing explainations that, in the universe of the fic, make perfect sense and actually explain a Plot Hole or two. For example, Rainbow Dash's behavior in "Mystrious Mare-Do-Well" was the result of her trying to cover up/compensate for her Heroic BSOD resulting from how she handled Discord's Sadistic Choice. Noteably a very well done example of how to do a Fix Fic right.
The Friendship is Magic fanfic Whisper explains the parasprite infestation in "Swarm of the Century" , and Twilight's attempt to fix it going horribly awry, as the work of sabotage by the Great and Powerful Trixie, who wrongly blamed Twilight for an apparent curse (actually a case of poison joke) that spoiled Trixie's stage presence.
There are also a number of fanfics (and at least one fan comic) that try to end the events of "The Best Night Ever" on a less bittersweet note.
My Little Unicorn is a fix fic which also happens to be aHate Fic, with the author trying to change the entire universe and its concepts to fit his ideas (for example, he absolutely hates the idea of friendship (the main concept of the FiM universe), and thinks that the power of belief is the strongest there is (whatever he means by that)). It's not aTroll Fic.
"Ten Minutes: Aftermath" was written as a response to the pro-human sentiments of the original story, intentionally subverting the message of the original in order to fit the author's own work into JDR's setting.
Today, Tomorrow, and Forever is about a loving mother, Derpy Hooves, having her daughter taken away by the Foal Protection Service for being unfit to care for a foal. This was too heartbreaking for many, so a different ending (Forever and Ever) was written when it turned out the whole case was handled incorrectly, several ponies vouch for Derpy's qualifications as a parent, and they are reunited happily.
Teen Titans fic that resurrects Terra after her Heroic Sacrifice are almost as endemic are those that inflict Die for Our Ship on her. After she actually was resurrected, or something, it changed into fixing what the author didn't like about it. One of them, part of the "Sanza Salazar trilogy", has Terra revived by the actions of a group of villains instead of whatever mysterious circumstance revived her in the original series, mostly so the Titans can get to her before she decides I Just Want to Be Normal like she did originally.
Quite a few fix "Things Change" where Beast Boy is able to successfully convince her to come back to the team.
In the past couple of years, a vast majority of Tiny Toon Adventures fans have been so upset over what happened to Fifi La Fume at the end of "Out of Odor" that some of them have written some alternate endings in which Fifi A.) gets saved, B.) outsmarts Elmyra, C.) gets help from somebody else, D.) manages to escape Elmyra in any way, or E.) gets saved by an unexpected twist.
In the wake of Toy Story 3, a cottage industry of Fix Fic has sprung up, getting Woody and Bo back together.
There's also ignoring the movie (and Seasons 3 and 4) completely.
Many Transformers fans are discontent with theUnicronTrilogy, and try to rewrite the entire series (yes, 52 episodes for each) to make it better fit with their sensibilities. This usually results in a fanverse that, but for the names of the characters, is absolutely nothing like the original shows. Keep an eye out for Darker and Edgier, elimination of perceived Scrappies, and the Decepticons as Always Chaotic Evil.
Frankie Rules, a Foster's Home for Imaginary Friends fic set after an 8-year Time Skip, features fixes for some less-than-popular episodes of the series (for example, the events of "The Little Peas" are revealed to be a wild rumor started by Bloo, and in the final chapter Frankie gets even with Goofball John McGee from "Impostor's Home for Make-Em-Up Pals"). There's also a prequel by the same author that makes amends for one of Madame Foster's most controversial actions.
The Total Drama Comeback Series, an alternate version of Total Drama's second season, wasn't intended as a Fix Fic at first... but when the actual Season Two aired, many people started to see it that way. Its author, the Kobold Necromancer, has since started a purposeful Fix Fic for Season Three, largely because his favorite characters weren't given the nicest treatment by the writers. (His favorite is Ezekiel, if that gives you any indication.)
Total Drama Do Over by CoGreen20 plays this mostly straight: it's the exact same challenges as the show, but with different outcomes.
Candy For Your Thoughts is an alternate version of the second half of World Tour,which mostly addresses the Courtney/Duncan/Gwen love triangle, but also fixes other things, such as toning down Alejandro's sueness, throwing Ezekiel a bone and overall having a happier and more satisfying ending.
The Infinite Loops can sometimes contain examples of Loopers going through their original storyline, or that of popular fanfics, and doing things "right" this time around. Then again, the Loopers are equally likely to just screw everything over for the lulz.
Titanic: Adventure Out of Time's best possible ending can be seen as one for the early half of the 20th century. The best ending involves the First World War being averted, Adolf Hitler becoming an artist after his painting was salvaged from the Titanic, and the Bolshevik Revolution failing with the implication that the Tsarist state gradually reforms into a constitutional monarchy more like the United Kingdom. On the other hand, some of the worse endings have the Nazis getting the atomic bomb or achieving victory over the Tsar in Operation Barbarossa, the Soviets invading Europe, or the Spartacus League taking over Germany and spreading Communism over all of Europe after German defeat in the First World War.
The Never Again novels are a set of alternate history novels that attempt to fix the entire Twentieth Century (hint: it involves time travel. And a few judicious assassinations: let's just say that Hitler's Time Travel Exemption Act has been thoroughly repealed.) Written as a kind of therapy by a professor who studied crimes against humanity, several of which appear as the backstory of some of the characters.
Likewise there are a lot of Real Life fanfics and alternate history stories about the Cold War that averts many of the more "controversial" American foreign policy directions taken during that time and averts the Vietnam War, which leads to less anti-Americanism in the world compared to today, not to mention less belligerence and Anti-Intellectualism in American society. It is also not uncommon to find alternate history that prevents the death of JFK, which also prevents, or contains said war from occurring. An example of this is The ISOT'd House: One Woman Goes from 2012 to 1952 found on AlternateHistory.com.
Another AlternateHistory.com example revolving not only around the US, but also Revolutionary Socialism/Marxism is Reds, which sees the US fall under a Communist revolution after the Great Depression. What makes this unique is that the form of Socialism in the US is not totalitarian and nearly actually democratic, being seen in a more positive light than most of the other governments of that time(through it has its own share of problems such as kangaroo courts and the execution of potentially innocent civilians, through not on the scale of Nazi Germany or the Soviet Union under Stalin). Word of God has confirmed that the politics of the Communist!USA(and even a reforming Soviet Union) has evolved into a form of Social Democracy.
Of course, we can't mention Fix Fic of history without bringing up the Trope Codifier for Giving Radio to the Romans — L. Sprague de Camp's Lest Darkness Fall, which is basically a Peggy Sue plot writ large, with the main character being transported to the end of the Roman Empire and prevents Justinian's disastrous attempt at reconquest, which the author blames directly for the Dark Ages. As revealed in the sequel, the hero's presence in the past results in the Dark Ages being completely averted, and the Gothic kingdoms manage to form a civilization that is even more advanced than the time the book was written, both technologically and socially, by the tenth century at the very latest.
Anime and Manga
In the Nightmare of Nunnally manga, Lelouch gets Powered Armor instead of a compelling voice, and the situation that leads up to the Euphinator incident doesn't happen. Instead, she ends up becoming the Empress of Britannia. The setting's kindness extends far further than that. Suzaku did not kill his father and is thus a true knight rather than a Death Seeker. Neither Mao nor Rolo get anywhere near Shirley. Nunnally ends fully recovered physically and even mentally, and with a new friend who might possibly be more. The only named characters that die are Genbu, Mao, Rolo, Marianne, Charles, Clovis, and possibly Darlton, which in turn means that the other characters don't have to angst about their friends and family being wiped out. Lelouch does take CC's code, which in this setting was probably a mercy, but parts on good terms with Nunnally and didn't break any hearts when leaving.
In a postscript to Nightmare of Nunnally, the author mentioned that he was impacted by the deaths of Euphemia and Lelouch in canon, which compromised his objectivity. However, he also mentions that he doesn't know if this is positive or negative.
Sometime during the 70s, Marvel published a pretty reprehensible The Avengers story involving Ms. Marvel, in which the Earth's Mightiest Heroes decide that Loving Force is good (discussed here probably NSFW). Apparently, Chris Claremont thought whoever wrote that tripe needed to go die in a fire, and wrote Avengers Annual #10 as a Fix Fic where Ms. Marvel calls the Avengers out on their bullshit. Thanks, Chris.
It's from Avengers #200 and is co-written by Jim Shooter, George Pérez, Bob Layton and David Michelinie. But it's notably Jim's idea.
It should be noted, though, that there were a number of things Geoff included that just caused more continuity errors. Such as the original Fatal Five being a part of the Legion of Super-Villains, even though, if this was supposed to be the "original" Legion, two were dead and one was neutralized. Sorcerer's World being intact after it was destroyed. Timber Wolf and Lightning Lass being a couple again. No mention of the Ranzz children. Andromeda being with the Reboot Legion in Limbo despite not being a member of the team when they were trapped, and the fact that there were members missing from the Threeboot Legion (Gazelle, Dream Girl) and some were added back after they left (Princess Projectra, Timber Wolf). There's also the fact that there were now two different sets of the Nolan twins (Ferro Lad and his brother), born in the present and future of New Earth, and a bigger continuity snarl concerning Impulse's mother and grandfather.
First, Geoff has stated outright that the "restored" OG Legion diverted from the original stories during Crisis on Infinite Earths, shortly after #14 of volume three (when Tellus, Magnetic Kid, Quislet, and Polar Boy joined the team and Projectra took up the Sensor Girl costume identity). As such, only broad strokes of what happened from #15-63 happened and moreso, Magic Wars never happened, since that storyline and it's fall-out (IE the United Planets basically collapsed economically because of it) basically what caused the "Five Year Gap" to happen.
The "Home Schooling" arc of Runaways was apparently supposed to "fix" the things that editor Nick Lowe hated about Joss Whedon and Terry Moore's runs on the series (namely, putting Klara Prast on the team and not bringing Gert back from the dead.) Somehow, "fixing" these problems entailed killing Old Lace and turning Klara into a complainer and implicit Humanoid Abomination, neither of which went over well with fans. The fact that the Runaways spent half of the arc just arguing with each other instead of actually doing anything didn't help. The last issue suddenly had Gert reappear, but by then, sales had dropped, and Marvel cancelled the series rather than finish the arc. Several years later, a two-issue arc in Avengers Academy basically served as a fix for "Home Schooling", revealing that Old Lace was alive and well and the Runaways are still one big happy adopted family.
The cult Spider-Man spin-off Spider-Girl basically ignores everything established in 616 after 1998 and establishes that Peter Parker and Mary Jane were reunited not with that elderly succubus Aunt May, but their infant baby daughter Mayday, who had been captured immediatly after her birth by agents of Norman Osborn. The book also follows up on long aborted or long-forgotten storylines from the 1990s and brings them forward in a consequential manner, creating fresh problems for The Parkers and other characters to overcome. Joe Quesada, a fan of the book, has often called Spider-Girl the "natural continuation of the Parkers' lives" in interviews, making some beleive it is in fact the "proper" continuity, though this is still heavily disputed.
In the Spider-man comics, one of the popular stories during the early 80's dealt with the identity of the Hobgoblin. The writer for the storyline, Roger Stern, left the series before revealing the identity. The storyline was passed around between several writers, before being resolved controversially and in a way that left a gapingPlot Hole. Eventually, Roger Stern was brought back to write the miniseries Hobgoblin Lives after editors were made aware of said Plot Hole, which undid the previous resolution and told the story as Stern originally intended.
Marvel launched a Fix Fic aimed at one of comics' greatest dork ages, the Spider-Man Clone Saga, a six-part series named, appropriately, Spider-Man: The REAL Clone Saga. It's written by Tom DeFalco, who was one of the editors of the original disaster and purports to "explore the story as it was originally conceived". The mini-series took several liberties and pot-shots at the Saga and later developments in Spider-Man books, climaxing with the message that Peter Parker should be a proud father by this point in his life.
Its basic premise involves the X-Men trying to revamp their image by donning new spandex costumes and acting as superheroes full-time. One of New X-Men's main selling points was the X-Men's decision to trade their colorful spandex costumes for black leather, which went along with Morrison's plan to distance the book from the superhero genre.
It has Kitty raise the possibility that Emma is manipulating Scott's mind, likely a reaction to the fact that Emma basically was doing that in Morrison's run. He also explains Emma's spoiled attitude during New X-Men as the results of...
A) PTSD from living through the Genosha incident.
B) Being psychically manipulated by Cassandra Nova as part of a Batman Gambit to free herself.
It includes a tense meeting between Scott and Nick Fury, where Scott calls Fury out for the superhero community's failure to respond to the Sentinels' attack on Genosha, which killed almost 16 million mutants—calling attention to the dodgy implications of Morrison's decision to ignore all other Marvel superheroes during his run on X-Men.
This was more or less the intention with the 2008 film adaptation of Evelyn Waugh's Brideshead Revisited. Despite being considered a modern classic that deals with homosexuality and religion, Waugh, who was a Catholic convert, had a very conservative theological view and comes out in favour of a God Is Good moral. The 1981 miniseries, despite being adapted by an atheist, kept motif because he admired how well Waugh worked the themes of grace into the text. The 2008 film, by the screenwriters and director's own admission, attempted to update the story to modern sensibilities with the homo-eroticism made less ambiguous. The screenwriter even admitted that "it will upset purists". A very explicit change is that it treats God and Catholicism as the villains of the story. Lady Marchmain in particular went from a more sympathetic, complex character to a downright villain (though played well by Emma Thompson). A lot of fans of the book, even those who have the same views of the filmmakers, did not appreciate the changes. In addition to this it should be noted that the movie's failure at the box-office could also be attributed to an Unpleasable Fanbase who automatically held the 1981 British serial as superior.
The film of Roald Dahl's The Witches could be seen as a controversial example, given that Dahl himself was upset at the writers inserting a character who, at the end found the boys and turned them back from mice to humans, going against the explicit ending of the book. Lukewarm reviews did not help either.
There's also the fact that it was a family film and really who'd want to see such a film end on such a depressing note.
Chapter's Due, Graham McNeill's sixth Ultra Marines novel, is something of a fixfic for the 5th edition fluff for the Space Marines Codex. It acknowledges that the Ultramarines do make mistakes, and that while they are some of the finest warriors in the Imperium, other chapters are still better than them at some things.
In the Doctor Who New Adventures novel Warlock, the Doctor and his companions adopt a kitten and name him Chichester. In a gratutious Kick the Dog moment to ensure It's Personal, the villains steal the kitten and subsequently kill him. In the Eighth Doctor Adventures novel City of the Dead, we're told that during the amnesia arc the Doctor catnapped Chichester and took him to live with a Welsh couple, although he wasn't sure why. (Note that this does nothing for the stolen animals that weren't named.)
The Gaunt's Ghosts and Ciaphas Cain series are, essentially, the result of injecting the Warhammer 40,000setting with an enormous does of optimism and competence. Yes, there is always a new horror lurking around the corner and brutal death and destruction are everyday facts of life, but even after ten millenia of constant war the Imperium is still filled with brave men and women that are willing and able to defend the innocent against the scum of the galaxy. The former series even saw a reinvisioning of the Imperial Guard, lifting them out of complete and total Red Shirt status, and into Mauve Shirt or even Men of Sherwood status within the fluff.
Connie Willis's Remake has one of the characters work in a place called "Happy Endings" which can "re-do" the endings to sad movies and make them happy. The main character thinks this is stupid, especially since their end to Casablanca would involve Ilsa's husband dying and her and Rick embracing, meaning the Nazis would kill them. At the end, however, he comes up with a better happy ending to Casablanca: a Distant Finale, where after the war is over, Ilsa (her husband dead) returns to the ruins of Rick's Bar and meets him.
The Road to Avalon by Joan Wolf reads like one for the King Arthur legends. Morgan le Fay and Arthur are Childhood Friends and each other's true loves, only kept apart due to their being too closely related. Morgan isn't evil, and neither is their son Mordred. Arthur accepts Guinevere's adultery with Bedwyr (a Composite Character of Bedivere and Lancelot) since he cannot love her himself, and becomes their Secret Keeper. When Camelot comes crashing down it's none of their fault.
Timothy Zahn, of course. Remember the "How Zahn Could Fix This Mess" fanfics? Well, when Bantam Spectra, then-publisher of the Star Wars books, was about to lose the license to Del Rey Books, they released the Hand of Thrawn. Luke as an Invincible Hero and Mary Sue? Gone. The ridiculous Lando/Mara relationship hints? Retcon. And so on, and so forth. The duology served as a capper to an entire era and would have made a Grand Finale...
Aaron Allston got into the game, too. All of his X-Wing Series books, solid stories in their own right, also fix other novels. The Wraith Squadron books repair The Courtship of Princess Leia, turning the cartoonishly evil Warlord Zsinj and General Melvar into Intelligence-trained Chessmasters with a mastery of Obfuscating Stupidity, and explain the inconsistent references to the destruction of Iron Fist, with the Second Death gambit. Starfighters of Adumar wraps up the unpopular Wedge Antilles/Qui Xux pairing and and gives the popular-but-heretofore-subtext-only Wedge/Iella Wessiri pairing a Relationship Upgrade. And Mercy Kill gives a lot of backfill to help show the individual cost of the Yuuzhan Vong War and events since, suggesting that maybe the galaxy can recover, not just get worse.
Isaac Asimov wrote a short story, "The Up-to-date Sorcerer", that serves as a Fix Fic to the ending of the Gilbert and Sullivan operetta The Sorcerer. The characters, all familiar with the operetta, find themselves in an identical situation, discard the solution used in the play as unworkable, and come up with a better way to resolve the dilemma. At least one modern production of The Sorcerer has used Asimov's ending instead of the original.
Marvin Kaye's novel The Incredible Umbrella has Wells reveal that he faked his self-sacrifice while dispelling the love-potion mess, in order to avoid having to deal with dissatisfied customers.
As mentioned in the fanfic examples for Wicked, the musical is basically a fixfic for the book. Elphaba and Fieyro don't die and get to live happily ever after, albeit in exile.
The Heroes novella 'Saving Charlie' appears to be one at first where Hiro saves Charlie, but ultimately, it's just a more in-depth look at their relationship which ends with him going back to future. The interesting thing is Hiro did go back try to save her again in the series and ended up being successful, but the actress was on another series and the relationship was sunk for something else.
A Blake's 7 example that seems likely: the episode "The Harvest Of Kairos", written by an author whose general work suggests serious problems with women, had Servalan suddenly and unconvincingly becoming a lust-crazed masochistic doormat to a ridiculously over-the-top Villain Stu. Two years later Tanith Lee scripted an episode called "Sand" in which a very similar character appears, lusts after her, gets squashed by her with barely any effort, and dies pathetically.
Over the course of 30 years, nearly every Doctor Who TV storyline was adapted into novelisations. This often allowed writers - especially those who wrote the original scripts - to revise and enhance elements of their stories in ways that couldn't be done when they were broadcast. The most extreme case was The Massacre where the original writer novelised his first draft of the script, ignoring all the changes later made at the producers' request. In recent years, Audio GO has put out audio book readings of many of these novelisations; at least two (as of 2013) have been brand-new, rewritten works crafted for audio by the original scriptwriters in lieu of the original novels which were written by house writers.
The episode "The Name of the Doctor" has a montage of various Great Intelligence and Clara splinters fixing the Doctor's timeline in old episodes. Most of the episodes chosen to do this with are notoriously bad ones, most notably the much-maligned Literal Cliffhanger in "Dragonfire" where the Doctor dangles himself off a cliff for no reason - the re-edit shows that he's leapt off the cliff to escape the malevolent presence torturing him...
As the Expanded Universe doesn't have to contend with the popularism and limited special effects budget of the television series, this enables it to give Doctors adventures that they never could have had on camera due to being far too expensive, or impossible to show with the technology at the time, or really interesting stories too slow or dark or weird to appease its target audience.
In the late 1970s, there was a line of toy dolls based on the series, all of which were heinously Off Model - the Doctor had a totally different face due to being a repurposed from an unpopular figure of a different actor dressed in the Doctor's clothes, Leela had a massive frizzy hairstyle, the K-1 Robot was a strange triangle shape, the Cyberman had a nose, and so on. As the revival series has boosted the merchandising budget, a range of 'retro figures' was released based on the 70s toy line, keeping similar proportions and the same soft-clothed appearance but drastically improving the quality of the sculpts, as well as expanding the range to include other popular Tom Baker-era villains (some dating from after the toy line) like Morbius, Scaroth, Styre, the undead Master from "The Deadly Assassin" and so on.
The licensed Star Trek books of the so-called Star Trek Novel Verse gives us the String Theory trilogy, which fixes up Star Trek: Voyager: Why is Captain Janeway so out of character at the beginning of Season Five, and other points later on? Why did the Nacene Caretaker species not show up after season two? Why is Voyager in top condition as of the later seasons despite dwindling supplies? Why did Kes suddenly turn bitter and evil in "Fury"? This trilogy fills in all the gaps, and helps make Voyager's continuity a lot easier to swallow. However, some readers have suggested that the answers given here are weirder than the possible plot holes they try to plug, others that the things being fixed weren’t too much of a distraction anyway.
Nicholas Briggs states that he explicitly wrote the audio drama The Energy of the Daleks as a fixfic — he realized that Tom Baker never got a straight classic Dalek adventure, instead being the first Doctor to have all of his Dalek stories overshadowed by Davros. So, he gave Tom a Dalek tale that was Davros-free.
The Big Finish audios often rescuewasted characters and Ensemble Darkhorse figures, with the Sixth Doctor being the primary beneficiary (as the then-incumbent Seventh and Eighth Doctors had popular book lines that fleshed them out a lot, but the then-past Sixth Doctor had to share his novels with five other more popular Doctors). Another repaired character is Susan, a character so disastrouslywritten that her actress became the first ever companion to leave the show, gets a much more nuanced characterisation in both her stories with her original Doctor and as the companion for the Eighth. Some of the Unfortunate Implications in Leela being Put on a Bus by having her Strangled by the Red String and leave to marry a Gallifreyan are also undone in the Gallifrey series, which is about her and Romana getting involved in Deadly Decadent Court political machinations.
The RPG of The Dresden Files book series has a section listing characters who have appeared in the novels. One of them is mentioned as "not coming back" after being mind raped beyond repair. The book suggests that a player might find inspiration in having that character, or one like her, recover anyway. In the margin comments, Harry Dresden is torn between being angry at the situation being treated lightly, and hopeful that the character might find peace, even if only in the context of a role playing game.
As is Below the Root for the huge mistake author Zilpha Keatley Snyder acknowledged herself to have made at the end of the Green-Sky Trilogy. Probably also the first video game canon sequel to a book.
Dragon Quest IV had one added to its DS remake. The first five chapters play out as they did in the original version. The sixth chapter allows you to revive both the big bad and the elven lady he loved, whose death pushed him to become the ultimate evil. Redeemed by love, the big bad then joins your party and fights beside you to take down one of his flunkies, the one who ordered the elf's death and therefore manipulated him into becoming the ultimate monster.
Dynasty Warriors: Gundam functions close to the same as Super Robot Wars but exclusively for Gundam. Where the player takes the place of prominent historical Gundam heros during their battles. With enough skill, one can prevent some of the tragic deaths of these series.
The game additionally features an 'Original story' mode that functions as a crossover for most of the series and allows the player to explore the motivations of some of Gundam's classical villains, even in some cases redeeming them.
Done in Ever17, where in the best ending, Blick Winkel, the reader, travels back in time to make sure Takeshi and Coco live until the events in 2034.
In the video game for Peter Jackson's King Kong,destroying enough airplanes and the searchlights during the final level will earn you an alternate ending where Kong survives, is returned to his island and receives a visit from Ann.
No, she still has the ability as shown in the sequel Gears of Destiny, but she's still dying. She has enough time to teach Hayate the proper way to use her magic before passing away and helps create Reinforce Zwei before then. Still sad, but much better than what happened to her in canon.
On a somewhat meta level, the second Hyperdimension Neptunia game was largely a case of "What could we have done if we hadn't run out of money?", helped along by the first game's True Ending leaving absolutely zero plot threads for a sequel. This is admitted right in the title, with the game branded mk2 instad of a traditional sequel.
Puella Magi Madoka Magica Portable has elements of this towards its parent anime series. Player choices can make it so that the outcomes of certain Wham Episodes are more favorable than in the anime. The trope can also be inverted, though, by making said choices result in even worse outcomes. For example, the player could save Mami from being killed by Charlotte, only to have her turn into a witch later.
Perhaps the single most successful and best-known offical example of Fix Fic is the Super Robot Wars series; they quite often take series that are seen as "good but flawed", such as Neon Genesis Evangelion or Zeta Gundam, and then proceed to "correct" what the fandom (and sometimes the professional critics) identify as narrative problems in the individual stories when making the Massive Multiplayer Crossover plots for the games. Examples include having Shinji become a much more mature, rational person due to more human contact or fixing some of the Character Derailment that affected Gundam SEED Destiny. Other times they simply provide the "best" scenario possible from ambiguous works, such as Amuro and Char surviving their final showdown in Char's Counterattack, or preventing tragic character deaths such as Gai Daigoji or Elpe Puru.
Keep in mind, at least at first, the whole nature of this trope was for balance reasons, as being too faithful to each series' storyline will definitely cause to end the game with very few characters, especially from series who normally ends with verydark or bitterweet conclusions, but later this become one of the most striking features of the whole franchise.