History Main / ArmedWithCanon

* ''Film/Deadpool2''. [[spoiler:During the end, after Wade uses Cable's time-travel device to give Vanessa's killer a cream cheese spreader in the brain, his other stops include 2009 for the Weapon X Deadpool entrance scene from ''Film/XMenOriginsWolverine'', that movie's version of the character notorious for not being well-received. A bullet in Weapon X's head cleans up the timeline.]]

* In ''WesternAnimation/TheFairlyOddParents'', Timmy/Tootie shippers have [[Film/AFairlyOddMovieGrowUpTimmyTurner a live-action movie which shows them getting together as adults]]. Whether or not the movie is canonical is hotly contested by other ''FOP'' fans, who do not like the live-action movie for various reasons, including Timmy's status as a 23-year-old 5th grader who refuses to grow up. What makes things even more confusing is that the live-action movie was created by Butch Hartman and Scott Fellows, both of whom worked on movies where Timmy romanced other girls such as ''WesternAnimation/{{Wishology}}'', yet all other romantic plots are retconned into non-existence by the ''FOP'' movie.

** An earlier example is Creator/AaronAllston's run on ''[[Literature/XWingSeries X-Wing]]'', which retconned the cartoonish, stupid Imperial villains of ''Literature/TheCourtshipOfPrincessLeia'' as skillful Intelligence-trained types who project the stereotype [[ObfuscatingStupidity as an act]] to make their enemies underestimate them. And ''Starfighters of Adumar'' has Wedge break up with the HotScientist who ''built the Death Star'', who he'd hooked up with in the ''Literature/JediAcademyTrilogy'', and fall for an old flame who'd been in a relationship with him for years in the ''Literature/XWingSeries''. Basically, Zahn, Stackpole and Allston had a three-way collaboration going to fix the shortcomings they saw in the Anderson/Hambly era of ''Legends''.

** When Philip Hinchcliffe was producer, script editor Robert Holmes kicked at a lot of issues he had with Creator/JonPertwee's Third Doctor (like how he was an InvincibleHero), explained many previously-ignored NecessaryWeasel tropes (like AliensSpeakingEnglish, WalkingDisasterArea and HeroBall) and retconned Time Lord society into a DecadentCourt of aging bureaucrats because he disliked the Creator/PatrickTroughton era's {{Utopia}} concept. Although he envisioned the Time Lords as a OneGenderRace of men unlike later writers, Holmes was the first to confirm that they could regenerate across gender.

[[folder:Sports]]
* An odd real-world version exists in combat sports when regarding titles. Often, champions will walk away from organizations or be stripped for not defending their titles (due to injury or, some say, ducking competition). Also some champions have lost fights in non-title bouts. This has led many fans of boxing and UsefulNotes/MixedMartialArts to create unofficial "linear" champions, based on who actually beat who for said title.
** Strangely, despite all the turmoil from the early days of MMA with champions leaving orgs or losing in non-title bouts, most methods of determining the linear champion still lead to the current holders of the major championships in the UsefulNotes/UltimateFightingChampionship.
*** Even if you go all the way back to UFC 1 and call Royce Gracie the first heavyweight champion, even by taking several different paths (depending on how you count his loss by default in UFC 3), or going by the first official HW champion crowned by the organization, the linear title still leads to the last Pride HW champion Fedor Emelianenko, who was beaten finally by Fabricio Werdum after a decade of being undefeated. Werdum = Alistair Overreem = Bigfoot Silva = Current HW champ Cain Velsquez.
[[/folder]]

* ''Franchise/SailorMoon'': One of the directors of the [[Anime/SailorMoon original anime]], Creator/KunihikoIkuhara, hated Mamoru because he found the character bland. So while in the [[Manga/SailorMoon manga]] and ''Anime/SailorMoonCrystal'' Tuxedo Mask is a fairly competent fighter in his own right and has some abilities, in the anime he just shows up at a few opportune moments, throws roses, and leaves, and otherwise has no abilities of note. His screentime is also cut. The anime staff also played up the Usagi/Rei ship, but were eventually forced to relent.

*** Even if you go all the way back to UFC 1 and call Royce Gracie the first heavyweight champion, even by taking several different paths (depending on how you count his loss by default in UFC 3), or going by the first official HW champion crowned by the orginization, the linear title still leads to the last Pride HW champion Fedor Emelianenko, who was beaten finally by Fabricio Werdum after a decade of being undefeated. Werdum = Alistair Overreem = Bigfoot Silva = Current HW champ Cain Velsquez.

** When Philip Hinchcliffe was producer, script editor Robert Holmes kicked at a lot of issues he had with Creator/JonPertwee's Third Doctor (like how he was an InvincibleHero), explained many previously-ignored NecessaryWeasel tropes (like AliensSpeakingEnglish, WalkingDisasterArea and HeroBall) and retconned Time Lord society into a DecadentCourt of aging bureaucrats because he disliked the Creator/PatrickTroughton era's MarySuetopia concept, which is still a [[FanDislikedExplanation fairly contested point]]. Although he envisioned the Time Lords as a OneGenderRace of men unlike later writers, Holmes was the first to confirm that they could regenerate across gender.

* ''Manga/{{Bleach}}'': While the TV series lasted, the anime staff (and especially the character designer, Masashi Kudo) were fans of Ichigo/Rukia rather than Ichigo/Orihime, and took every opportunity to play up their ship's teasing moments (to the point of inserting ''a whole {{filler}} episode'' dedicated to Ichigo and Rukia ShipTease), while downplaying or outright removing any Ichigo/Orihime subtext they could get away with. On the other hand, Creator/TiteKubo [[https://tumblrhalix.tumblr.com/post/65221770745/ichinoue clearly and firmly]] stated that [[PlatonicLifePartners Ichigo and Rukia]] were {{the not love interest}}s to one another, kept giving ShipTease to Ichigo and Orihime ''plus'' Renji and Rukia, [[spoiler: and ultimately made them the {{official couple}}s, [[ShipSinking officially sinking Ichigo/Rukia]] at the end of the manga.]]

* ''Series/StarTrekPicard'' had an on-screen dismissal of one of the most controversial parts of ''Film/StarTrekNemesis'', where Data is killed off but it is then hinted that some of his memories may have been installed into his inferior prototype "B-4".

* ''Series/StarTrekPicard'' had an on-screen dismissal of one of the most controversial parts of ''Film/StarTrekNemesis'', where Data is killed off but it is then hinted that some of his memories may have been installed into his inferior prototype "B-4". This was unpopular with many fans who thought that killing off Data was a cheap AssPull and disliked the implication that Data could be recreated simply by dumping his memories in a different body. In the second episode of ''Picard'', we are shown B-4's deactivated and dismembered body in storage at the Daystrom Institute, and Dr. Jurati tells Picard that the memory transfer could never have worked because of B-4's inferior positronic brain and that "B-4 wasn't much like Data at all".

* ''Series/StarTrekPicard'' had an on-screen dismissal of one of the most controversial parts of ''Film/StarTrekNemesis'', where Data is killed off but it is then hinted that some of his memories may have been installed into his inferior prototype "B-4". This was unpopular with many fans who thought that killing off Data was a cheap ShockingSwerve and disliked the implication that Data could be recreated simply by dumping his memories in a different body. In the second episode of ''Picard'', we are shown B-4's deactivated and dismembered body in storage at the Daystrom Institute, and Dr. Jurati tells Picard that the memory transfer could never have worked because of B-4's inferior positronic brain and that "B-4 wasn't much like Data at all".

* ''StarTrekPicard'' had an on-screen dismissal of one of the most controversial parts of ''Film/StarTrekNemesis'', where Data is killed off but it is then hinted that some of his memories may have been installed into his inferior prototype "B-4". This was unpopular with many fans who thought that killing off Data was a cheap ShockingSwerve and disliked the implication that Data could be recreated simply by dumping his memories in a different body. In the second episode of ''Picard'', we are shown B-4's deactivated and dismembered body in storage at the Daystrom Institute, and Dr. Jurati tells Picard that the memory transfer could never have worked because of B-4's inferior positronic brain and that "B-4 wasn't much like Data at all".

** The status of Gallifrey in the series has bounded back and forth quite a bit as a result of the three showrunners of the new series having considerable disagreements regarding it. Upon its premiere in 2005, Creator/RussellTDavies set the tone for the new series by having [[Recap/DoctorWhoS27E2TheEndOfTheWorld the second episode]] reveal that Gallifrey was destroyed off-screen as a result of the Last Great Time War, to provide the Doctor with some TurnOfTheMillennium-appropriate {{angst}} and remove the complexities of Gallifreyan society and politics that had started to bog down the Time Lords' portrayal in the classic Series. Come [[Recap/DoctorWho50thASTheDayOfTheDoctor "The Day of the Doctor"]] in 2013, and Creator/StevenMoffat would reveal that Gallifrey actually ''wasn't'' destroyed, but was instead hidden away in a pocket dimension, with the Doctor even revisiting the planet in [[Recap/DoctorWhoS35E12HellBent "Hell Bent"]] two seasons later; Moffat heavily disliked Davies' decision to destroy Gallifrey by then, and many viewers were starting to agree that the whole idea of the Doctor being the LastOfHisKind was getting stretched out to the point of exhaustion. However, Creator/ChrisChibnall would then throw his own middle finger to Moffat's middle finger and have the Master destroy Gallifrey off-screen in 2020's [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]]. Then in "The Timeless Children" it was additionally revealed that he'd [[DeaderThanDead turned all the Time Lords' corpses into Cybermen]], and they were then apparently destroyed by a bomb. On the flip side, the eponymous Timeless Child adds on some heavy complexities to Gallifreyan society and politics. The only question now at this point is how long it'll be before a future showrunner decides to revive Gallifrey yet again to spite Chibnall; given Chibnall's successor is Russell T. Davies, it'll probably be a while.

* In the ''Literature/WhateleyUniverse'', the first several Phase novels were written years (in real time) after the first stories for the other main characters came out: the [[FanNickname Canon Cabal]] finally found someone new to write the stories. The new author [[RetCon retconned]] a bunch of small moments that she deemed 'out of character' for Phase. So far, these are still standing. This is presumably because Diane's Phase has an incredibly different background, a much more focused power. There were also attempts to keep the retcons small, and still match with continuity. (Which led to fun with Phase forgetting 'his' utility belt.)

* General ''Series/DoctorWho'': The question of how many lives the Doctor has had is a vexed one. A cut line in the script for "[[Recap/DoctorWhoS4E3ThePowerOfTheDaleks The Power of the Daleks]]" would have established the Doctor had been 'renewed' before, but in the event "[[Recap/DoctorWhoS10E1TheThreeDoctors The Three Doctors]]" declared Creator/WilliamHartnell's Doctor had been the first. Creator/RobertHolmes and Creator/PhilipHinchcliffe contested this during their era, revealing the Doctor had had at least eight incarnations before Hartnell in "[[Recap/DoctorWhoS13E5TheBrainOfMorbius The Brain of Morbius]]". Eric Saward's tenure as script editor firmly pinned down Hartnell's Doctor as the first incarnation in "[[Recap/DoctorWhoS20E3MawdrynUndead Mawdryn Undead]]" and "[[Recap/DoctorWho20thASTheFiveDoctors The Five Doctors]]", glossing over the Morbius incarnations (official episode guides came up with explanations, but nothing on-screen addressed it). Creator/ChrisChibnall's era stated in "[[Recap/DoctorWhoS38E10TheTimelessChildren The Timeless Children]]" that [[spoiler:the Doctor had had innumerable lives stretching back to the dawn of Time Lord civilisation, including the Morbius incarnations, which had been [[LaserGuidedAmnesia sealed from Hartnell's Doctor's memory]] and concealed in the Time Lords' records]].

** "The Five Doctors" had an example of this within the story itself. The writer of the story, Creator/TerranceDicks, got fed up with script editor Eric Saward's insistence that the Cybermen [[CreatorsPet have a bigger and bigger role]] in the story. As a result, he added a memorable scene in which a Raston Warrior Robot, a brand new very low-budget monster portrayed by a ballet dancer in a silver zentai suit and who never made another meaningful appearance in the franchise as of 2021, turned up to slaughter a whole platoon of Cybermen in one of the most extreme examples of CurbStompBattle ever to appear in ''Doctor Who''.

*** Until a major canon arms race between Traviss and Troy Denning, which started in ''Literature/LegacyOfTheForce'', then spilled over into the ''Literature/RepublicCommandoSeries'' and ''Literature/FateOfTheJedi''. Traviss and Denning clashed ''hard'' over their depictions of Jedi and Mandalorians with several books' worth of jabs at each other's characters, until in ''Legacy of the Force: Invincible'', Denning [[spoiler:had Mandalore nanovirus-bombed specifically to kill off Boba Fett's family]], and even that was countered in Traviss' ''Imperial Commando: 501st'', which [[spoiler:denied that a nanovirus could be accurate enough to wipe out her characters]]. Traviss has since left writing ''Star Wars'' for various reasons (including financial and ''WesternAnimation/StarWarsTheCloneWars'', a higher priority canonical source over her writings, arming itself with canon over the Mandalorian issue in its second season, though ''Star Wars: The Essential Atlas'' and ''Star Wars: The Essential Guide to Warfare'' introduced retcons that reconciled Traviss' interpretations of the Mandalorians with the show's, and sure enough the pacifist Mandalorian government that Traviss was so offended by in ''The Clone Wars'' was overthrown by traditionalist Mandalorian warriors in the very next season).
** Curtis Saxton, originally a PromotedFanboy, wrote a lot of data in several technical manuals for ''Legends''. Unfortunately, he has been accused of trying to rewrite ''Franchise/StarWars'' to help the pro-''Star Wars'' side of the ''Star Wars'' vs. ''Franchise/StarTrek'' UltimateShowdownOfUltimateDestiny online debates curbstomp the Trekkies, and as such gave hugely inflated numbers for pretty much everything. [[SciFiWritersHaveNoSenseOfScale He and his fans argue that it is simply a consequence of what is shown onscreen.]] The acceleration needed to get to orbit as fast as is shown in ''Star Wars'' requires the ability to produce insane levels of firepower, as well as being consistent with what the Death Star does. Though the problem is that this is wholly inconsistent with what is observed in the rest of canon. Troop numbers are particularly problematic. He established that the Separatists have quintillions of droids based on the industrial potential shown by the Death Star. Given that the ''Film/AttackOfTheClones'' movie novelization, a higher canonical source than Saxton's manuals, implied that the "million more well on the way" was a million clone warriors, he had given the Separatists more than a trillion droids for every clone the other side had--then again, much of the reason Saxton made the argument to begin with was that a million clones being treated as a powerful fighting force in a galaxy where one faction treated "ten thousand star systems" as a minor detail in the same film is pretty ludicrous in itself.

** This got so bad that when Creator/{{Disney}} acquired the rights to ''Star Wars'', one of the first things they did was declare everything above non-canon. They've since worked on building up a [[Franchise/StarWarsExpandedUniverse new expanded canon]] and are keeping tight control to prevent stuff like it from happening again. Elements from ''Legends'' have been brought back into canon (Boba Fett surviving the Sarlacc pit, ''Literature/StarWarsTarkin'' making most of ''Literature/DarthPlagueis'' canon again, etc.), but often in a BroadStrokes manner that sidesteps all the pissing matches between the old EU writers. For instance, a lot of Karen Traviss' ideas about Mandalorian culture are still canon, but with a number of changes. However, fans have noticed some contradiction already with Disney’s books and films, and one of the producers has been quoted as saying there is no firm canon.

* In the ''Literature/LandOfOz'' book series, a series with ''forty'' canonical books and hundreds of unofficial books written since the series ended, thanks to most of the books now being public domain, this was bound to happen. Creator/LFrankBaum, creator of the series, was no stickler for continuity himself, and would often change things up on the fly. This left a tough job for Ruth Plumly Thompson, the author commissioned by the publisher to continue the series after Baum's death. She saw fit to give the Scarecrow her own origin story (Baum never explained why he was alive), which a lot of fans didn't like, and introduced many of her own characters, ballooning the cast. After she quit, the longtime illustrator of the series John R. Neill wrote some books for the series, and things got, well, [[DenserAndWackier strange]]; for instance one book has the Wizard try to introduce cars to Oz, and another involves an attempt to bring democracy to Oz and hold an election. Most fans agree his additions didn’t jive well with what Baum and Thompson had established. The next author, Jack Snow, did a RetCon of Thompson's and Neill's additions to the series and continued it going solely off of Baum's canon (Thompson, reportedly, was actually okay with this, not wanting another author using her characters). The authors after Snow mainly did this as well, while also ignoring Snow's contributions. Modern unofficial Oz books (the ones that at least [[DystopianOz try to follow canon, anyway]]) will either take everything as canon (and have to do mental gymnastics to make the ContinuitySnarl make sense), or just Baum's work.

** "Hell Bent" also specifically shows a white male Time Lord getting shot and regenerating on-screen into a black woman, hammering home that both RaceLift and GenderBender possibilities are canon after previous Moffat-era episodes had established them occurring separately.
* On ''Series/{{House}}'', the friendship between [[HeterosexualLifePartners House and Wilson]] had such intense HoYay overtones that writer Doris Egan couldn't resist writing just a bit more of it each episode, but the other writers weren't on board and kept downgrading Egan's RelationshipUpgrade moments again. Showrunner David Shore had to WordOfGod nix the canon likelihood of House and Wilson becoming a couple in a semi-famous interview with TV critic Mo Ryan, after Doris Egan's writing on the "Amber" StoryArc made the subtext nearly text.

* In ''WebVideo/HeyAshWhatchaPlayin'', Ashly asks her brother Anthony about what it's like being the writer for ''VideoGame/Borderlands2''. The skit has him realize that whatever he writes into the game becomes canon to the series.

** A minor case in ''WesternAnimation/StarWarsTheCloneWars''. Creator/DaveFiloni deliberately gave Literature/DarthBane a cameo in the final episode to ensure the character (who he was a fan of) would remain canon after Creator/{{Lucasfilm}} announced their plans to de-canonize ''Franchise/StarWarsLegends''.

* ''Franchise/{{Transformers}}''. All of it. It's so diverse with multiple canons and universes that just about ANY viewpoint can be backed up with evidence from somewhere, be it the cartoons, comics, anime, manga, radio plays, novels, movies or toys. It doesn't help that the fandom is one of the most diverse and self-antagonistic groups on the internet (response to anything new is almost overwhelmingly negative) so you have ''thousands'' of fanboys and girls arming themselves with canon to push their point.

* ''Franchise/MagicalGirlLyricalNanoha'' had a bit of a shipping war among the staff, where the [=NanoYuuno=] shippers ran the [[FourthWallMailSlot Sound Stages]] and tried to torpedo the [[SchoolgirlLesbians NanoFate]] ship by having Nanoha and Hayate suggest that Fate was trying to distance herself from being [[HasTwoMommies Vivio's other mother]]. In ''[=ViVid=]'', Vivio kept seeing Fate as her other mother, and Fate once referred to ''herself'' as "Fate-mama" while speaking with Vivio. In fact, during [=ViVid=] chapter 77, [[https://dynasty-scans.com/chapters/mahou_shoujo_lyrical_nanoha_vivid_ch77#26 Vivio explicitly says that she has two mothers]] and that "[the three of them are] a totally normal family" when explaining her family situation to another character.

** A particularly common trend: a writer introduces a new character, who is Arthur's ''actual'' best knight, and will often pass some sort of test to prove it, while whomever the last writer claimed was the best knight is both less competeant and [[TookALevelInJerkass less pleasant]] than he used to be. This is why characters like Kay and Gawain are so DependingOnTheWriter--they were paragons whom later writers demoted to shore up their preferred characters.

* In ''Anime/RebuildOfEvangelion,'' screenwriter Yoji Enokido argued that [[spoiler:Rei II]] should survive the end of the second movie, [[SparedByTheAdaptation despite dying in the source material]]. However, at least one of the films' directors wanted to give their replacement, [[spoiler:Rei III]], more CharacterDevelopment in this adaptation, so the third movie reveals that said character did die after all. (Well, [[OnlyMostlyDead more or less]].)

* Jay Pinkerton of the ''VideoGame/TeamFortress2'' lore writers has been trying to pull a WordOfGay on [[PerkyFemaleMinion Miss Pauling]]. Unfortunately for him, Creator/{{Valve|Corporation}} doesn't seem to agree with him, and has her alternating between being completely {{asexual|ity}} and having ShipTease with Scout.

* General ''Series/DoctorWho'': The question of how many lives the Doctor has had is a vexed one. A cut line in the script for "Power of the Daleks" would have established the Doctor had been 'renewed' before, but in the event "The Three Doctors" declared Creator/WilliamHartnell's Doctor had been the first. Robert Holmes and Philip Hinchcliffe contested this during their era, revealing the Doctor had had at least eight incarnations before Hartnell in "The Brain of Morbius". Eric Saward's tenure as script editor firmly pinned down Hartnell's Doctor as the first incarnation in "Mawdryn Undead" and "The Five Doctors", glossing over the Morbius incarnations (official episode guides came up with explanations, but nothing on-screen addressed it). Chris Chibnall's era [[spoiler:addressed things by revealing the Doctor had had innumerable lives stretching back to the dawn of Time Lord civilisation, including the Morbius incarnations, which had been [[LaserGuidedAmnesia sealed from the First Doctor's memory]] and concealed in the Time Lords' records.]]

** When Creator/PhilipHinchcliffe was producer, script editor Creator/RobertHolmes kicked at a lot of issues he had with Creator/JonPertwee's Third Doctor (like how he was an InvincibleHero), explained many previously-ignored NecessaryWeasel tropes (like AliensSpeakingEnglish, WalkingDisasterArea and HeroBall) and retconned Time Lord society into a DecadentCourt of aging bureaucrats because he disliked the Creator/PatrickTroughton era's MarySuetopia concept, which is still a [[FanDislikedExplanation fairly contested point]]. Although he envisioned the Time Lords as a OneGenderRace of men unlike later writers, Holmes was the first to confirm that they could regenerate across gender.
** Hinchcliffe hated the character of the Master, thinking of him as an ineffectual "[[DastardlyWhiplash music hall villain]]". So in Season 14, he had the Master reimagined as a rotting corpse cheating death by his own willpower (influenced by ''Literature/ThePhantomOfTheOpera'' and the {{Lich}} trope). When Creator/JohnNathanTurner took charge later, the character was promptly [[RevisitingTheRoots changed back]] (by having said rotting corpse pull a GrandTheftMe on a healthy body) and made even {{camp}}ier.
** [[Recap/DoctorWho20thASTheFiveDoctors "The Five Doctors"]] had an example of this within the story itself. The writer of the story, Creator/TerranceDicks, got fed up with script editor Eric Saward's insistence that the Cybermen [[CreatorsPet have a bigger and bigger role]] in the story. As a result, he added a memorable scene in which a Raston Warrior Robot, a brand new very low-budget monster portrayed by a ballet dancer in a silver zentai suit and who never made another meaningful appearance in the franchise as of 2021, turned up to slaughter a whole platoon of Cybermen in one of the most extreme examples of CurbStompBattle ever to appear in ''Doctor Who''.

** The status of Gallifrey in the series has bounded back and forth quite a bit as a result of the three showrunners of the new series having considerable disagreements regarding it. Upon its premiere in 2005, Creator/RussellTDavies set the tone for the new series by having [[Recap/DoctorWhoS27E2TheEndOfTheWorld the second episode]] reveal that Gallifrey was destroyed off-screen as a result of the Last Great Time War, to provide the Doctor with some TurnOfTheMillennium-appropriate {{angst}} and remove the complexities of Gallifreyan society and politics that had started to bog down the Time Lords' portrayal in the classic Series. Come [[Recap/DoctorWho50thASTheDayOfTheDoctor "The Day of the Doctor"]] in 2013, and Creator/StevenMoffat would reveal that Gallifrey actually ''wasn't'' destroyed, but was instead hidden away in a pocket dimension, with the Doctor even revisiting the planet in [[Recap/DoctorWhoS35E12HellBent "Hell Bent"]] two seasons later; Moffat heavily disliked Davies' decision to destroy Gallifrey by then, and many viewers were starting to agree that the whole idea of the Doctor being the LastOfHisKind was getting stretched out to the point of exhaustion. However, Creator/ChrisChibnall would then throw his own middle finger to Moffat's middle finger and have the Master destroy Gallifrey off-screen in 2020's [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]]. Then in "[[Recap/DoctorWhoS38E10TheTimelessChildren The Timeless Children]]" it was additionally revealed that he'd [[DeaderThanDead turned all the Time Lords' corpses into Cybermen]], and they were then apparently destroyed by a bomb. On the flip side, the eponymous Timeless Child adds on some heavy complexities to Gallifreyan society and politics. The only question now at this point is how long it'll be before a future showrunner decides to revive Gallifrey yet again to spite Chibnall; given Chibnall's successor is Russell T. Davies, it'll probably be a while.

** [[DefiedTrope Defied]] by Davies and Moffat on the origins of the Twelfth Doctor's face, [[IdenticalStranger as he resembled a dude from Pompeii]]. They could both write their own ways on how it happened, but both brainstormed a good idea for an explanation in "[[Recap/DoctorWhoS35E5TheGirlWhoDied The Girl Who Died]]".

* Creator/MasahiroSakurai, the director of ''VideoGame/SuperSmashBros'', has acknowledged a number of times that he prefers [[Characters/SuperMarioBrosBowser Bowser]] from ''[[Franchise/SuperMarioBros Super Mario]]'' as a bestial terror rather than the BoisterousBruiser AntiVillain he tends to be written as in most modern ''Mario'' games. This is usually interpreted to be the reason why the Bowser in ''Smash Bros.'' has Franchise/{{Godzilla}}-like noises as a voice rather than having his current voice actor, Kenny James, and has a fighting style based on sheer physical muscle instead of the wacky technology, magic powers, and goofy mannerisms that he tends to favor in his home series. Even Giga Bowser was apparently based on how he always pictured Bowser looking.

** A minor case in ''WesternAnimation/StarWarsTheCloneWars''. Creator/DaveFiloni deliberately gave Literature/DarthBane a cameo in the final episode to ensure the character (who he was a fan of) would remain canon after Creator/{{Lucasfilm}} announced their plans to de-canonize the original Franchise/StarWarsExpandedUniverse.
** The same team set to this with gusto in ''WesternAnimation/StarWarsRebels'', happily bringing in everything they liked about the old EU in their preferred versions (such as a version of Mandalorians that combined the previous conflicting portrayals). This got recursive when Timothy Zhan did a novel covering the new backstory for Thrawn, and promptly established that an out of character moment of OffscreenVillainy mentioned at his introduction was actually done by the resident HateSink.

** The ''DWM'' comic strip was also in continuity with the ''New Adventures'' for much of the 1990s, until they suddenly decided to announce they weren't by [[spoiler: killing Ace]].
** An [[https://lanceparkin.wordpress.com/2013/08/26/eulogy-of-the-daleks/ unpublished epilogue]] to the final Literature/DoctorWhoNewAdventures novel, ''The Dying Days'' would have had a far-future Doctor, having seen the definite final end of the Daleks, give a eulogy in which he describes how they came back from their past defeats, including "I destroyed their homeworld and they simply claimed the computer records had been doctored". Among the reasons Virgin cut this scene was that they felt it unfair to "unretcon" ''War of the Daleks'' before it was even published.

* In the ''Literature/LandOfOz'' book series, a series with ''forty'' canonical books and an additional hundreds of unofficial books written since the series ended, thanks to most of the books now being public domain, this was bound to happen. Creator/LFrankBaum, creator of the series, was no stickler for continuity himself, and would often change things up on the fly. This left a tough job for Ruth Plumly Thompson, the author commissioned by the publisher to continue the series after Baum's death. She saw fit to give the Scarecrow her own origin story (Baum never explained why he was alive), which a lot of fans didn't like, and introduced many of her own characters, ballooning the cast. After she quit, the longtime illustrator of the series John R. Neill wrote some books for the series, and things got, well, [[DenserAndWackier strange]]; for instance one book has the Wizard try to introduce cars to Oz, and another involves an attempt to bring democracy to Oz and hold an election. Most fans agree his additions didn’t jive well with what Baum and Thompson had established. The next author, Jack Snow, did a RetCon of Thompson's and Neill's additions to the series and continued it going solely off of Baum's canon (Thompson, reportedly, was actually okay with this, not wanting another author using her characters). The authors after Snow mainly did this as well, while also ignoring Snow's contributions. Modern unofficial Oz books (the ones that at least [[DystopianOz try to follow canon, anyway]]) will either take everything as canon (and have to do mental gymnastics to make the ContinuitySnarl make sense), or just Baum's work.

** The status of Gallifrey in the series has bounded back and forth quite a bit as a result of the three showrunners of the new series having considerable disagreements regarding it. Upon its premiere in 2005, Creator/RussellTDavies set the tone for the new series by having [[Recap/DoctorWhoS27E2TheEndOfTheWorld the second episode]] reveal that Gallifrey was destroyed off-screen as a result of the Last Great Time War, to provide the Doctor with some TurnOfTheMillennium-appropriate {{angst}} and remove the complexities of Gallifreyan society and politics that had started to bog down the Time Lords' portrayal in the classic Series. Come [[Recap/DoctorWho50thASTheDayOfTheDoctor "The Day of the Doctor"]] in 2013, and Creator/StevenMoffat would reveal that Gallifrey actually ''wasn't'' destroyed, but was instead hidden away in a pocket dimension, with the Doctor even revisiting the planet in [[Recap/DoctorWhoS35E12HellBent "Hell Bent"]] two seasons later; Moffat heavily disliked Davies' decision to destroy Gallifrey by then, and many viewers were starting to agree that the whole idea of the Doctor being the LastOfHisKind was getting stretched out to the point of exhaustion. However, Creator/ChrisChibnall would then throw his own middle finger to Moffat's middle finger and have the Master destroy Gallifrey off-screen in 2020's [[Recap/DoctorWhoS38E1E2Spyfall "Spyfall"]]. Then in "[[Recap/DoctorWhoS38E10TheTimelessChildren The Timeless Children]]" it was additionally revealed that he'd [[DeaderThanDead turned all the Time Lords' corpses into Cybermen]], and they were then apparently destroyed by a bomb. On the flip side, the eponymous Timeless Child adds on some heavy complexities to Gallifreyan society and politics. The only question now at this point is how long it'll be before a future showrunner decides to revive Gallifrey yet again to spite Chibnall.

* Creator/MasahiroSakurai, the director of ''VideoGame/SuperSmashBros'', has acknowledged a number of times that he prefers [[Characters/SuperMarioBrosBowser Bowser]] from ''[[Franchise/SuperMarioBros Super Mario]]'' as a bestial terror rather than the comical AntiVillain he tends to be written as in most modern ''Mario'' games. This is usually interpreted to be the reason why the Bowser in ''Smash Bros.'' has Franchise/{{Godzilla}}-like noises as a voice rather than having his current voice actor, Kenny James, and has a fighting style based on sheer physical muscle instead of the wacky technology, magic powers, and goofy mannerisms that he tends to favor in his home series. Even Giga Bowser was apparently based on how he always pictured Bowser looking.

** Creator/MichaelStackpole's ''I, Jedi'' was written at the same time as ''Hand of Thrawn'', with deliberate {{Shout Out}}s between the two, and did a similar Armed With Canon attack on the ''Literature/JediAcademyTrilogy'' (inserting Corran Horn in it and having him repeatedly point out how Kyp Durron is [[KarmaHoudini getting away with mass murder]], people are being idiots, and the plot makes no sense). Some consider it a FixFic, others object to how the "fix" involved making Corran instrumental in ''all'' the students' battles to protect Luke from the spirit of Exar Kun up to and including giving them the plan for their final confrontation with Kun, so that even some of the people who are otherwise ''fans'' of Corran Horn have labeled him a MarySue in his book (Stackpole might have even realized that himself late in the writing, since Corran is significantly less infallible in the second half of the book, and even after realizing his mistakes still needs Luke to [[BigDamnHeroes bail him out]]).

* The ''Series/StarTrekDiscovery'' novel ''Dead Endless'' features an AlternateUniverse ''Discovery'', which Dr Culber encounters while trapped in the mycelial network at the end of the first season. Burnham is the captain, with Saru as her loyal first officer, Stamets is much nicer, if still a bit arrogant, Landry is still alive, and ''there is no Klingon war''. It's eventually established that this is because Burnham ''followed regulations'' during the first episode. In other words, the decision that the series presented as the only viable option in the circumstances, for which she was unfairly punished, is demonstrated to be the event that made everything worse for everyone.