Perhaps Naruto discovers that Kisame has a family he's been protecting in secret, and this new knowledge makes Naruto see Kisame in a different light. He then tries to help Kisame reunite with his family while also dealing with the Akatsuki.
One interesting plot twist could be that Kisame, through some strange jutsu or encounter, switches bodies with Naruto. They then have to navigate each other's lives and relationships while trying to figure out how to switch back. This would lead to many comical and also serious situations as they try to keep their true identities a secret from their respective allies and enemies.
Well, it could be that Naruto's relationship with the other Konoha ninjas changes drastically. They might see him as an outcast because of his association with Kisame. On the other hand, Naruto might try to bridge the gap between Konoha and the Akatsuki due to his upbringing by Kisame. This would create a whole new set of conflicts and alliances within the Naruto universe.
Perhaps Naruto discovers that Sheele was sent to his world by an enemy as a spy, but she has actually fallen in love with the place and the people, especially Naruto, and she has to prove her loyalty. This would create a lot of drama and tension in the story.
A possible plot twist could be that Tsuyu is secretly related to one of Naruto's enemies. Maybe she discovers this during the course of a mission and has to decide whether to side with her newfound family or continue to be Naruto's ally.
One possible plot twist could be that Naruto was cloned by an enemy to infiltrate the Leaf Village. But as he grows up, he starts to develop his own sense of self and loyalty to the village, causing a conflict within him. Another could be that the real Naruto is actually alive somewhere else, and the clone Naruto has to find and reunite with his original self.
One plotline could be that fem Kisame is actually a long - lost relative of Naruto's. This discovery shakes both of them, and they have to navigate their new - found family connection while also dealing with the political and ninja - world implications of such a revelation. In this kind of fanfiction, their relationship would be filled with a mix of family loyalty and the typical Naruto - style action and adventure.
A possible plot twist could be that Naruto discovers he has a hidden connection to Smaug. Maybe he is related to Smaug in some long - lost magical way. Another twist could be that Smaug is not really a villain in this fanfiction. Instead, he is being controlled by a greater evil, and Naruto has to figure out how to free Smaug from this control. It would change the whole dynamic of their relationship from one of enmity to a more complex situation where they could potentially become allies.
A possible plot twist could be that Naruto turns out to be a keyblade wielder in disguise. This would completely change the dynamic as everyone in the Naruto world and Kairi would be shocked. It could also mean that Naruto has a whole different origin and mission related to the world of Kingdom Hearts.
A possible plot twist could be that one of the Autobots is actually being controlled by an old enemy from Naruto's world. This enemy has found a way to hack into the Autobot's system and use it for their own revenge. So, while the Autobots seem to be helping Naruto, in reality, they might be leading him into a trap.
A plot twist might be that Naruto, after being abandoned by his family, finds a new 'family' in unexpected places. For example, he could bond closely with a group of outcasts in the village who understand his pain. Or perhaps, the family's abandonment was part of a larger conspiracy within the ninja world, and Naruto's journey to uncover the truth behind it becomes a major part of the story.
A possible plot twist could be that the god who betrays Naruto is actually being controlled by an even greater, more malevolent force. So Naruto, instead of just fighting the betraying god, has to figure out how to deal with this underlying evil. Another twist could be that the god's betrayal was a test all along, and Naruto discovers this at the last moment when he's about to defeat the god.