One interesting plot twist could be that Naruto is forced to kill the army because they are under a mind - control jutsu, and he has to find a way to break the control without killing them all at first. Another could be that the army he kills is actually a clone army created by a powerful enemy as a decoy, and the real threat is still hidden.
Well, sometimes in these fanfictions, a plot twist might be that Naruto kills the army but then discovers that they were innocent people who were misled. So he then has to deal with the guilt and find a way to make amends. Or, the army he kills turns out to be an illusion in the end, and the real army is waiting to ambush him while he thinks he's won.
In some of these fanfictions, there could be a plot twist where Naruto kills the army not with his usual jutsu but by using a new, unexpected power. For example, he might tap into a dark, hidden power within himself that he didn't know he had. This could lead to a whole new arc in the story where he has to learn to control this power and deal with the consequences of using it to kill the army. Also, the army might be made up of his former friends who were brainwashed, and after killing them, he has to find a way to resurrect them.
Maybe Naruto discovers that the dragons are part of a prophecy that he has to fulfill by either killing or saving them. This creates a moral dilemma for him and adds depth to the story. He might also find out that he has a hidden connection to the dragons, like being related to them in some way, which completely changes his perspective on the situation.
In certain fanfictions, a plot twist is that Harry doesn't kill Voldemort directly. Instead, he uses his love and friendship magic in a very unique way. He manages to make Voldemort see the error of his ways, and Voldemort sacrifices himself to undo all the evil he has done. This is a very different take from the usual 'kill or be killed' scenario. Another interesting plot twist could be that the killing of Voldemort reveals a long - hidden prophecy about Harry that has nothing to do with the original prophecy, and this new prophecy sets Harry on a whole new path of discovery and adventure.
One possible plot twist could be that Naruto's 'godlike' powers are not his own but are the result of some ancient curse placed on Orochimaru that backfires. For example, Orochimaru was trying to gain ultimate power and in the process, he unknowingly transferred a powerful and uncontrollable energy to Naruto. So when Naruto kills Orochimaru, it's like the curse has completed its cycle. Another aspect could be the emotional turmoil Naruto goes through. Even though he has to kill Orochimaru for the greater good, it still weighs on his conscience because Naruto is a character who values all life. He might struggle with the idea that he had to take a life, even if it was someone as evil as Orochimaru.
Well, perhaps in the fanfiction, Naruto kills Orochimaru and the Akatsuki, but it turns out that Orochimaru had a failsafe. His death triggers a powerful curse that starts to affect Naruto and the Hidden Leaf Village. Naruto then has to find a way to break this curse while also dealing with the remaining threats that were associated with the Akatsuki. It could be a race against time to save the village and himself.
One interesting plot twist could be that Naruto is brainwashed into believing his friends are his enemies. So he starts to attack them, but then there are hidden memories that start to resurface during a crucial battle, making him question the brainwashing. This creates a moment of internal struggle within Naruto, which is a great source of drama.
One interesting plot twist could be that the Kitsune endows Naruto with unique fox - like powers that are different from his normal chakra. For example, he might be able to communicate with other fox - related spirits in the forest. Another twist could be that the Kitsune's upbringing makes Naruto more in tune with nature, so he has an easier time learning certain types of jutsu related to the elements. And perhaps, due to the Kitsune's influence, Naruto has a different view on the concept of family, leading to some interesting interactions with his friends who have more traditional family structures.
Maybe Naruto is resurrected by an unexpected force, like an ancient and forgotten jutsu that was thought to be lost. This could lead to a whole new arc where he has to figure out who resurrected him and why, while also dealing with the fact that the world has changed since his death.
One interesting plot twist could be that the kidnappers are actually being controlled by an old enemy of the Hidden Leaf Village who has a personal vendetta against Naruto. Maybe they plan to use him as a bait to draw out the Hokage. Another twist could be that Naruto is kidnapped by someone he trusts, like a seemingly friendly ninja from another village who has a secret agenda.
One interesting plot twist could be that Naruto, being mistaken for a boy, gets involved in an all - boys training or competition where he has to constantly hide his true identity. This creates a lot of comical situations as he tries to blend in without being discovered.
One interesting plot twist could be that Naruto discovers he has a hidden power from a long - lost clan that changes the course of the final battle. This power might be something that gives him an edge against a seemingly unbeatable foe.