History WMG / SamuraiJackAku

** [[spoiler:Jossed. Aku is indeed killed in battle--twice!]

* [[spoiler:Zig-zagged.Aku and HP ''already'' did meet long ago in the past, though they didn't have any conversation like that.]]

[[spoiler:Zig-zagged. Jack kills Aku, but he couldn't have done it without Ashi's help.]]

* Jossed. [[spoiler:Aku and HP ''already'' did meet long ago in the past, though they didn't have any conversation like that.]]

** [[spoiler:"Episode C" confirms that Aku '''did not''' miss the Guardian's portal; he killed the Guardian and destroyed it.]]

He got his nasty on with that She-Aku that's voiced by GreyDeLisle, or he just conducted some sort of juju to create magic-test tube babies that have his blood or whatever. That kind of thing.

*** [[spoiler:Jossed. None of this is true.]]

Aku's been tormented and left a nervous wreck for ''50 years'' to the point he's too terrified to even leave his lair, but then finally manages to seemingly win for once... imagine how he's going to react if something happens to ruin that. He might get his '[[VillainousBreakdown Ratigan Moment]]' as Jax Blade puts it.

[[spoiler:Zig-zagged. The Guardian's portal has been destroyed, but Jack does eventually get back to the past.]]

Bear with me here. While it's hard to believe that the ultimate embodiment of evil and darkness who has so much power at his disposal could possibility possess self-loathing, many moments in the series seem to suggest that Aku is not only battling Samurai Jack but also himself. Many instances where Aku had the upper hand and could have ended Jack's life and come out victorious are constantly thwarted by his own evil nature. For example, there were so many ways Aku could have disposed of Jack when he arrived in the future. Being the ruler of the fricken world and surrounding space, he could have easily gathering the largest army he could find and shoot down the culture shocked Jack while he was at his most vulnerable, tiring him down until he could no longer fight back. Even better, he could have convinced Jack that the future he was sent in is an illusion and trick him into endangering and killing innocents so that when the truth is revealed to him, he will be sent straight into a {{Despair Event Horizon}}. Yet he doesn't do this - by the time Jack makes it to his destination, Aku is just lying on his throne doing nothing but engaging in bits of petty evil here and there with a look of stern boredom on his face, almost like he was waiting for someone to arrive and challenge him. No matter how much he tries he just can't keep himself in check. His self aggrandizement and spite is almost like an addiction he can't kick off. Evil is often shown incapable of love, kindness, or mercy, so if Aku is {{made of evil}}, then he probably shouldn't expect his own evil to treat him in that wy either, such as allowing Jack to defeat him by exploiting his sadistic tendencies. He probably knows deep down that he's deliberately making himself miserable, but his vileness prevents him from being consciously aware of it and may even try to thwart such awareness if he were to reach an epiphany at some point in his eternal life. And even if he did reach that epiphany, like Tzeentch he would probably be instantly wiped from existence since he would have no more purpose to do evil, even for it's own sake.

Jack realizes physically attacking Aku can't destroy him, but figures out a way to copy his moral personality into Aku. With a conscious, Aku suddenly is overcome with guilt for several eons of causing pain and suffering across the universe and begs Jack to finish him off. Seems like something jack would do.

He remains in it because its easier and he can maintain control. His true form has a drawl back that makes it not a good idea (like losing the sentience he obtained from Jack's father's arrow) and he's saving it for a OneWingedAngel transformation in the final battle (if we ever see it).

[[WMG: Greg Baldwin will replace Mako as Aku's voice actor if they make TheMovie.]]

Bear with me here. While it's hard to believe that the ultimate embodiment of evil and darkness who has so much power at his disposal could possibility possess self loathing, many moments in the series seem to suggest that Aku is not only battling Samurai Jack but also himself. Many instances where Aku had the upper hand and could have ended Jack's life and come out victorious are constantly thwarted by his own evil nature. For example, there were so many ways Aku could have disposed of Jack when he arrived in the future. Being the ruler of the fricken world and surrounding space, he could have easily gathering the largest army he could find and shoot down the culture shocked Jack while he was at his most vulnerable, tiring him down until he could no longer fight back. Even better, he could have convinced Jack that the future he was sent in is an illusion and trick him into endangering and killing innocents so that when the truth is revealed to him, he will be sent straight into a {{Despair Event Horizon}}. Yet he doesn't do this - by the time Jack makes it to his destination, Aku is just lying on his throne doing nothing but engaging in bits of petty evil here and there with a look of stern boredom on his face, almost like he was waiting for someone to arrive and challenge him. No matter how much he tries he just can't keep himself in check. His self aggrandizement and spite is almost like an addiction he can't kick off. Evil is often shown incapable of love, kindness, or mercy, so if Aku is {{made of evil}}, then he probably shouldn't expect his own evil to treat him in that wy either, such as allowing Jack to defeat him by exploiting his sadistic tendencies. He probably knows deep down that he's deliberately making himself miserable, but his vileness prevents him from being consciously aware of it and may even try to thwart such awareness if he were to reach an epiphany at some point in his eternal life. And even if he did reach that epiphany, like Tzeentch he would probably be instantly wiped from existence since he would have no more purpose to do evil, even for it's own sake.

![[center:'''[[WMG/SamuraiJack Index]]:''' [[WMG/SamuraiJackJack Jack]] | Aku | [[WMG/SamuraiJackAkuCult Aku Cult]] | [[WMG/SamuraiJackOtherCharacters Other Characters]] | [[WMG/SamuraiJackStoryline Storyline]] | [[WMG/SamuraiJackCrossovers Crossovers]] ]]

Aku's been tormented and left a nervous wreck for ''50 years'' to the point he's too terrified to even leave his lair, but then finally manages to seemingly win for once...imagine how he's going to react if something happens to ruin that. He might get his '[[VillainousBreakdown Ratigan Moment]]' as Jax Blade puts it.

Aku's been tormented and left a nervous wreck for ''50 years'' to the point he's too terrified to even leave his lair, abut then finally manages to seemingly win for once...imagine how he's going to react if something happens to ruin that. He might get his '[[VillainousBreakdown Ratigan Moment]]' as Jax Blade puts it.

Aku's been tormented and left a nervous wreck for ''50 years'' to the point he's too terrified to even leave his layer, abut then finally manages to seemingly win for once...imagine how he's going to react if something happens to ruin that. He might get his '[[VillainousBreakdown Ratigan Moment]]' as Jax Blade puts it.

He got his nasty on with that She-Aku that's voiced by GreyDeslile, or he just conducted some sort of juju to create magic-test tube babies that have his blood or whatever. That kind of thing.

----

[[WMG: In a moment of desperation, Future Aku will follow Jack back to the past.]]
Jack almost defeated Aku in the past, so it would only be truly dangerous if the final battle in the past is Jack versus two Akus.

[[WMG: Aku will step back into the villainy game, and in [[KnightOfCerebus a major way]].]]
Come on, this will likely be all too easy to predict. Aku will probably find out at some point that Jack lost his sword, which will give him the courage to confront him again. Also, Aku has probably gotten really bored of ruling the world and barely trying to pretend to be some sort of half-way decent authority figure, so he will decide to commit atrocities on a grander scale than before -- [[GenericDoomsdayVillain perhaps he'll even try to destroy]] [[OmnicidalManiac the world or the known universe]].
* We will probably see this in action as soon as he discovers Jack does not, in fact, have his sword. It will be a mad chase to reach Jack before he finally does recover his sword, during which Aku will make everything he did in the previous seasons look like child's play in sunshine; the new rating would allow him to go full-blown Lovecraftian horror.
** If that's so, he'll [[MoralEventHorizon out-right kill everyone standing between him and Jack, with his bare claws]]. EVERYONE, from the [[BoisterousBruiser Scotsman]] to [[ShooOutTheClowns Da Samurai]] to [[KillTheCutie the Wishing Fairy]] to [[ShootTheDog the Totoro-like Creature]]. Even [[HeelFaceTurn Ashi]]. All the more, [[NiceJobFixingItVillain it only serves to motivate Jack to reach his sword so all his allies will not have died in vain.]]
** Dear God, has this been confirmed... well, sort of. [[spoiler:Aku doesn't kill any of the aforementioned characters (except for the Scotsman). Aku does gets back into the villainy game after Scaramouche tells him that Jack lost his sword (though that information is already outdated, as they don't know Jack got his sword back). Though Aku does make up for it by exploiting his daughter Ashi's love for Jack...]]

[[WMG: Jack will get back to the past and destroy Aku, however...]]
[[TheHeroDies He will not survive]] [[HeroicSacrifice the final battle]], perhaps because Future Aku decided to come back as well to protect his own past self, or something like that. Jack won't be around to see it, [[BittersweetEnding but at least he made the world a better place]]...

[[WMG: Jack and Aku will make a bargain]]
When the inevitable confrontation happens, both parties will acknowledge they are tired of the unending battle, and Jack will make a bargain with Aku to return to the past.
* What kind of bargain though, exactly? Aku had his reasons for not wanting Jack to get back to the past.
* Jossed.

[[WMG: Jack killed Aku at the end of "Jack Learns to Jump Good".]]
The rest of the series is Aku's, you guessed it, DyingDream. It would also explain why the episode ends so abruptly.

[[WMG: Aku will snap out of his funk and concentrate all his efforts on destroying Jack.]]
Jack and Aku have constantly been shown as foils to each other, and since Jack is gradually overcoming his doubts over defeating Aku and returning home, there's no reason for Aku to not get over his moping about his plan of destroying all the time portals and letting Jack die of old age not working. Also, it would be rather boring if the GrandFinale had Jack engage in battle against an apathetic and worn-out Aku.

[[WMG: Aku himself will be the one to send Jack back to the past.]]
There are no time portals left, but Aku himself possesses the ability to send others through time, as that is how Jack ended up in the future in the first place. In his final confrontation with (future) Aku, Jack will somehow trick or force him into returning Jack to his own time.
* Well, Aku only destroyed all ''known'' time portals. There are possibly a few that he missed, like maybe the Guardian's portal.
** [[spoiler:"Episode C" confirms that Aku '''did not''' miss the Guardian's portal; he killed the Guardian and destroyed it.]]

[[WMG: [[spoiler:The Scotsman's ghost will haunt Aku]].]]
When [[spoiler:Ghost!Scotsman isn't recruiting more troops]], he spends his free time trolling Aku.
* This would be a very funny counterpart to all those imaginary friends/enemies who are haunting Jack.

[[WMG: Aku will ''LET'' Jack kill him.]]
When Jack arrives to finally face Aku, Aku will simply let Jack kill him, tired of years of trying to kill each other with no success on both parts. Jack will be shocked by this, obviously.

[[WMG: Ashi will be the one who finally destroys Aku once and for all.]]

[[WMG: Aku's depression is a case of SerendipityWritesThePlot.]]
In this case, playing to Greg Baldwin’s abilities. Much like Iroh back in Avatar and Korra, Greg Baldwin covering for Mako is always a little bit scratchier, rougher and doesn’t usually have quite as much range tonal range as the original performance. Baldwin is better at playing Mako’s roles in a lower register, while Mako could more easily go from lower to higher. So, because Baldwin’s range is better suited to Aku in his more frustrated, even upset moments, Aku is written as more melancholic.

[[WMG: Scaramouche will be Aku's UnwittingInstigatorOfDoom.]]
In his bid to serve Aku as best he is able, Scaramouche eventually will reach him and inform him Jack lost his sword. Aku will then frantically go out to face Jack in the hopes of finishing him off... after Jack has retrieved it, leading Aku into a final battle he isn't prepared for.
* Confirmed, but Aku has coped rather quickly.

[[WMG: Aku recreated Demongo in response to the Scotsman's TheReasonYouSuckSpeech.]]
Aku realized he can't deal with going out to fight warriors only for Samurai Jack to be used as a rallying cry by them and depress him more, so he created Demongo to deal with them for him. Hence why Demongo was looking for a new collection: he was only just recreated by his master.
* Also, Demongo was created by Aku in the first place (he does vaguely look like his master after all).

[[WMG: Aku and the High Priestess will meet at some point.]]
It would go kinda like this:
-->'''High Priestess:''' ''(Explains her cult, what her Daughters went through, and her undying love towards Aku)''
-->'''Aku:''' ...You are a crazy woman. ''(awkward pause)'' ...I like it.
* Jossed. [[spoiler:Aku and HP did meet long ago in the past, though they didn't have any conversation like that.]]

[[WMG: Aku and the High Priestess/Cult have already met once.]]
After all, the High Priestess mentions Aku gracing them with his presence "once again". However, it'll turn out that there's a reason for Aku not appearing before them. It'll be the same reason the cult never thought to simply visit his fortress to provide him tribute: the High Priestess and the Cult of Aku were actually ''[[TooSpicyForYogSothoth way too creepy]]'' for the Shapeshifting Master of Darkness to handle, and he actually issued a restraining order on the annoying cultists to make sure he doesn't have to deal with them.
* Confirmed, sort-of. [[spoiler:A flashback confirmed that they did meet about two decades ago, although Aku never met the cult again, not because he found them annoying, but simply because he didn't care enough to remember them.]]

[[WMG: The High Priestess' obsession with Aku... is an extreme sexual fetish.]]
She's always dreamed of marrying and fucking Aku for her entire life. The fact that she refers to her own daughters as if they were Aku's daughters would imply this. Going with with the above theory that [[TooSpicyForYogSothoth Aku finds his cult to be too weird and creepy]], he cut off all ties with the cult because [[{{Asexuality}} he's never had any interest in sexuality]] (especially if it involves lowly, pathetic mortals that he considers beneath him).
* [[spoiler:Jossed. Aku ''is'' the father of the Daughters, but he conceived them ''without'' actually having sex with the High Priestess (what really happened is something similar to... artificial insemination?).]]

[[WMG: They weren't kidding about Ashi and her sisters being [[MeaningfulName "The Daughters of Aku"]]...]]
There has to be ''some'' reason why the High Priestess was pregnant with a bunch of kids with jet black hair, right?
* [[FlatWhat What?]] That is a very weak argument for your theory. Aku doesn't even have any hair. And besides, most people from Asia have black hair, there's nothing unusual about that. And if the "Daughters of Aku" were the literal offspring of a giant devil, they wouldn't look or act so human.
** No no silly, I meant that their hair was the same shade as... most of Aku's body.
*** That's still quite a great leap-of-faith conclusion to jump into though.
* This troper doesn't think it's weird for Earth's supreme ruler to have consorts, at least for killing boredom. Having his way with women of any species, human or not, shouldn't be a problem for a shapeshifting sorcerer. A tree is only his default form. He's taken human forms before.
** Aku has never shown any real interest in sexuality or mating with mortals. The closest was when he fooled Jack with his disguise as an attractive woman, and that was simply to troll him for his twisted sense of humor.
* [[spoiler:Surprisingly, this has been confirmed. Although it should be noted that the Priestess got pregnant through indirect means, not by having sex with Aku.]]

[[WMG:Aku will assume the form of an {{Orochi}} during one of the battles, perhaps even the FinalBattle.]]
Jack and Aku are from Japan, and Orochi is a ''huge'' cultural thing there, often even being used as a demon king in fiction. That and ''The Little Prince and the Eight-Headed Dragon'' was one of the chief inspirations for Samurai Jack, and, no surprise, that film dealt with a battle against Yamata no Orochi. So Aku turning into Yamata no Orochi as a OneWingedAngel form would be fitting.

[[WMG: Aku's last words will be a BigNo.]]
Aku has always been a massive stereotype of EvilIsHammy, so it would be strange for him to say anything else in his final moments.

[[WMG: Aku is the reincarnation of a human villain.]]
As shown in "The Birth of Evil, Part 1", Aku as we know him was born when the Emperor, armed with an arrow dipped in an enchanted poison, fired it at the Black Mass, accidentally transforming it into a new kind of monster. However it seems weird that Aku, who was literally born just a few minutes before (and came from a mindless primordial entity no less), already knew how to speak and give himself a name, and also knew how to use his superpowers to consciously inflict evil upon the world.

The reason was that in a past life, Aku {{was once a man}}. His past incarnation was a Japanese {{evil sorcerer}} who was a {{misanthrop|e supreme}}ic {{narcissist}} and {{sadist}}ic {{sociopath}} with a [[LaughablyEvil twisted sense of humor]], who had aspirations for [[AGodAmI godhood]] and [[TakeOverTheWorld global domination]]. When he died, he transferred his soul into [[SoulJar a vial filled with a magical potion]], which was (un)wittingly given by that Buddhist monk to the Emperor, in hopes of returning with more power than ever before. And he got his wish; Aku has no knowledge that he used to be human, but retained his evil personality and skills with using {{black magic}}.

[[WMG: The sword can't kill Aku, just imprison him.]]

[[WMG: Jack ''is'' Aku.]]
What, don't look at me like this! There's a possibility that Jack got corrupted by himself, thus, creating a TimeParadox and putting so many different timed and placed characters in an unique setting. Jack/Aku just had ripped the fabric of Time and Space apart, somehow or another. First hint is his true name never being revealed. Maybe The Scotsman went through some rip and is the true hero, as he'll save Jack from being corrupted through PowerOfFriendship.
* This [[{{Flying Dutchman}}wandering unregistered troper]] went to this page expecting to see just that. He was not displeased. I think that maybe Aku is Jack Evil-Side (that was created by Aku in a episode). Maybe when Jack walks through a portal (or before that), he will be divide into two forms. He "normal side" and his "evil side". While his "normal side" manages to return to the past to defeat Aku, his "evil side" manages to return to the beginning of time (maybe by the use of some really powerful {{Black Magic}} and turns into the giant black mass that is shown in the beginning of the story.
* Alternatively, Jack is an alternate universe [[ComicBook/TheSentry Sentry]], and Aku is his SuperPoweredEvilSide, the Void.
* It's also possible that Jack will get back to the past and defeat Aku, whose last evil act will be turning Jack into a New Aku, who'll be the one who created the BadFuture. New Aku's actions through the series were his way to be sure Jack will get back to the past to become him.
* As showcased in the Season 5 trailer, ''Jack cannot die of natural causes''. He's not human anymore. He's become immortal thanks to time-travel, [[ElderlyImmortal even when he grows a beard]]. There were two episodes that focused on the Samurai's evil side, the second was born of a direct infection from Aku. Jack's story is basically a story as old as time: [[AllegoricalCharacter the eternal struggle against your own inner demon.]]
** Actually, although Jack cannot age to death, he's technically still human.
* His existence as the evil one is a [[YouAlreadyChangedThePast Predestination Paradox]]. Travelling forwards in time is easy, travelling backwards, is ''dangerous''. If he succeeds in getting to the past, he'll cause a TimeCrash, Jack will become a chaotic mess that the gods have to deal with in the beginning of time. And his remains impact Earth, destroying the dinosaurs, causing untold misery and suffering and, oh man, this troper is getting depressed just thinking about the profound implications of this WMG.
* His father's impact on him cannot be understated, as a chaotic mess he was unable to take on a monstrous form, until his father ''attacked'' him. And to top it off, the magical sword is a manifestation of Jack/Aku's father's love. His father's love for him literally is the only thing that can ''hurt him''.
* Jack might have been ''corrupted by Set himself''. Seeing the gods send the Samurai back in time for the greater good, the trickster deity interfered, transformed Jack into (mindless chaos) Aku, thus made the warrior his second in command, that spawned the whole predestination paradox. This would explain:
** Why the minions of Set obeyed a command from Aku.
** Why the archers, corruptions of Aku, strongly resembled Set.
** Why the gods cannot destroy Aku on Earth - ''[[IKnowYouAreInThereSomewhereFight they're trying to save the fallen Jack.]]''

[[WMG: Jack can't return home until he's defeated Aku in the future.]]
If he returns to the past and defeats Aku there, the future will likely still exist as an alternate timeline, to be tormented by Aku for eternity. Jack will not be allowed to travel back until he destroys Aku in this time too, to give hope to the future as well as the past.
* Alternatively, Jack will only be allowed to return home once Aku is dead simply because Aku won't stop finding new ways to [[YankTheDogsChain screw Jack out of reaching a working portal]] until one of them dies.
* Alter-alternatively, by Jack killing Aku in the future, he will have no problems defeating Aku in the past, as Aku's powers and influence seem to have gotten stronger over time. In other words, Jack killing Future Aku means he'll defeat a ''stronger'' opponent than Past Aku, thus Past Aku won't be as hard as a fight as his Future self - basically, Aku will, himself, have accidentally given Jack the training he needs to beat him in the past. Yeah, MindScrew I know.
** Not so far fetched. ''Anime/DragonBallZ'''s Future Trunks did the exact same thing. By the time the Cell Saga was done, he had enough power in his own time to effortlessly dispatch Androids 17, 18 and Pre-Transformation Cell. Jack will know all of Aku's best tricks before he does. Maybe the sword was forged with a mental suggestion that Aku send his foe forward, and the slashing transmitted the suggestion. Odin and his homies know how to play Aku.

[[WMG: Aku will transform into the EldritchAbomination seen in "Birth of Evil".]]

[[WMG: Jack will stop Aku in the Future and Past]]
But he'll learn that there are hundreds, if not thousands of alternate dimensions. Driven by his desire to ensure that ''no one'' ever suffers Aku's terror, Jack will find a means to endlessly travel time and space, fighting Aku for all eternity. Yea, definitely a bit of a downer ending, but it would show how bad ass Jack is if he were willing to sacrifice any chance of peace just to ensure that Aku never exists in any dimension.
* [[FailureIsTheOnlyOption Jack's not immortal.]]
** You say that like he actually cares. If he realizes his own mortality, he'll find a successor, or have a son.
** Besides, this is Jack we're talking about. He can ''jump good'' and fight armies and only get a little winded. Who's to say that Jack might not be able to live to be a BadAssGrandpa whose Really700YearsOld?
** Potentially canonically possible, even, given Jack and the Monks - one of the monks from his own time manages to survive until Aku's future through sheer spiritual adeptness.
* I could agree with the first idea, only a little bit [[WesternAnimation/TurtlesForever [=TMNTized=].]] Jack will find Aku prime, where Aku is the original form of himself, and through all the powers he has obtained will ''destroy'' Aku with his sword. The reason he remains to fight this particular Aku is to test his ability with the most powerful foe he has ever faced, so that he can be a steel trap when it come to Aku prime.

[[WMG: Aku's humanoid form is simply a type b ShapeshifterDefaultForm.]]

Bear with me here. While it's hard to believe that the ultimate embodiment of evil and darkness who has so much power at his disposal could possibility possess self loathing, many moments in the series seem to suggest that Aku is not only battling Samurai Jack but also himself. Many instances where Aku had the upper hand and could have ended Jack's life and come out victorious are constantly thwarted by his own evil nature. For example, there were so many ways Aku could have disposed of Jack when he arrived in the future. Being the ruler of the fricken world and surrounding space, he could have easily gathering the largest army he could find and shoot down the culture shocked Jack while he was at his most vulnerable, tiring him down until he could no longer fight back. Even better, he could have convinced Jack that the future he was sent in is an illusion and trick him into endangering and killing innocents so that when the truth is revealed to him, he will be sent straight into a {{Despair Event Horizon}}. Yet he doesn't do this - by the time Jack makes it to his destination, Aku is just lying on his throne doing nothing but engaging in bits of petty evil here and there with a look of stern boredom on his face, almost like he was waiting for someone to arrive and challenge him. No matter how much he tries he just can't keep himself in check. His self aggrandizement and spite is almost like an addiction he can't kick off. Evil is often shown incapable of love, kindness, or mercy, so if Aku is {{made of evil}}, then he probably shouldn't expect his own evil to treat him in that way either, such as allowing Jack to defeat him by exploiting his sadistic tendencies. He probably knows deep down that he's deliberately making himself miserable, but his vileness prevents him from being consciously aware of it and may even try to thwart such awareness if he were to reach an epiphany at some point in his eternal life. And even if he did reach that epiphany, like Tzeentch he would probably be instantly wiped from existence since he would have no more purpose to do evil, even for it's own sake.

[[WMG: Aku is a result of a experiment of the Incubators from ''Anime/PuellaMagiMadokaMagica'']]
Aku is an attempt of incubators to create a witch from dark matter in space. Seeing the result as a failure, Odin, Ra, and Vishnu, which were actually high-tech nanotech suits by the incubators, banished Aku. However Aku's pseudo-grief seed managed to find itself to Earth causing the extinction of the dinosaurs. Fast forward in time, the site where the pseudo-grief seed landed became ancient Japan and gradually created an imperfect barrier which enveloped a forest.

The incubators later provided Jack's father some nanotech technology in a bid to vanquish Aku but it awakened the witch Aku which finally revealed its humanoid form. Jack's father was able to seal Aku in a tree using a sword enhanced by Incubator nanotech. Aku was later freed by a solar eclipse. Jack himself later fights Aku and nearly defeated the witch. Aku sent him to the future (using the same magic, ahem technology which enabled [[spoiler:Homura]] to travel time. where Aku has enveloped the Earth in a barrier where the witch rules supreme.

Jack will be able to go back in time and defeat Aku. The incubators will then continue to research on how to combat entropy and they will find a much safer and more reliable way shortly: [[spoiler:through the magical girl system]]

[[WMG: Jack will seal Aku within himself.]]
The last time Aku was fought, Jack's father was only able to weaken him and have him sealed, but not for very long. Given all the damage Aku has caused each time he's come back, Jack would seal Aku within himself, prepared to keep him in check for all eternity if it's required. This would also play into the names of both characters: Jack + Aku = Jaaku, the Japanese word for "evil".
* This sort of already happened in one episode, when a piece of Aku got inside Jack and infected him, slowly transforming him into an Aku clone. It doesn't sound like a good idea to repeat this incident with a similar idea.

[[WMG: The demonic entity from "Jack and the Haunted House" is yet another shard of the primal evil mass from "The Birth of Evil".]]
Only, unlike Aku, it hadn't been dealt with by humans. Or if it was, the method was different. Maybe an exorcism instead of a poisoned arrow. As a result, instead of a malicious and sapient tyrant with a human-like personality, it's a horrifying spirit with a completely alien mind.

[[WMG: The Daughters are literally Aku's biological children.]]
He got his nasty on with that She-Aku that's voiced by GreyDeslile, or he just conducted some sort of juju to create magic-test tube babies that have his blood or whatever. That kind of thing.
* [[spoiler:Confirmed. The High Priestess drank a cup full of Aku's liquefied essence, which conceived the Daughters.]]

[[WMG: Aku killed the Guardian and destroyed the Time Portal]]
* Jack tells the vision of his father in flames that Aku "destroyed the way home"; the Guardian's time portal is the best bet for a reliable way for Jack to return to the past that we know of, and is most likely what he's talking about. And while the Guardian may be more formidable than Jack in combat, unless his sword is also divine in nature, he wouldn't be able to beat Aku.
** OP here. Somebody had better pick up that phone. [[spoiler:Because I f*cking ''called it!'']]
*** Hold the phone there. [[spoiler:The portal is indeed destroyed but the Guardian [[NeverFoundTheBody isn't confirmed dead]]; just strongly implied.]]

[[WMG: Jack has achieved a partial victory over Aku.]]
Aku is not seen in the first episode, and does not know Jack has lost his sword, the one weapon that can slay him. In fact, the Daughters (whom he is never seen communicating with) seem to indicate that the efforts he is taking to eliminate Jack have been stepped up. It is thus possible that Aku has been hurt or imprisoned somewhere and cannot influence the world the way he used to, possibly due to an unseen battle with Jack.
* Especially if, at that time, Aku was actually reduced to a form smaller than his mouse form he used to escape in "Jack and the Zombies", causing Aku to never leave his lair ever, in fear that should he encounter Jack outside again, he'll be vanquished.

[[WMG: When Jack deals the final blow on Aku in the past, the scene will suddenly cut to the future, where everything is fading away into the light.]]

[[WMG: Aku is aware that Jack cannot age and is taking advantage of it]]
While both immortal, Aku's mind seems a lot better adapted to the stress of eternity than Jack's is. Once Aku figured it out he slowed down his provocations of the one man whose blade can harm him (hence 40 'episodes' in 50 years), simply waiting out his eventual mental collapse.
* Semi-confirmed; he knows Jack is TheAgeless, but this has propelled Aku himself dangerously close to the DespairEventHorizon.

[[WMG: Aku is torn between fear of his mortality and wanting to go out in a blaze of glory]]

* Confirmed

[[WMG: The Horseman is an offshoot of Aku.]]
One of Aku's titles is "The Shogun of Sorrow". Perhaps the Horseman is a physical personification of that description, regardless if it's real or a figment of Jack's imagination.
* Jossed, the Omen has nothing to do with Aku.

* Oddly enough, [[spoiler: Confirmed, but ''now'' he sees Ashi as a benefit.]]

Aku has always been a massive stereotype of EvilIsHammy, so it would be strange for him to say anything else in his final moments.

* Confirmed, but Aku has coped rather quickly.

The rest of the series is Aku's, you guessed it, DyingDream. It would also explain why the episode ends so abruptly.

* Jossed.

* Confirmed