One possible plot twist could be that the battle kimono is cursed. Naruto doesn't know it at first, but as he uses it more, it starts to affect his mind. Another twist could be that the kimono was made by an enemy to track Naruto's movements. Or perhaps the kimono is a key to a hidden dimension, and Naruto accidentally activates it during a battle.
A plot twist might be that the battle kimono was once worn by a great enemy in the past. When Naruto puts it on, people mistake him for that enemy and he has to prove his identity. Also, the kimono could have a hidden ability that is only activated when Naruto is in a life - or - death situation. But this ability comes with a price, like sacrificing some of his chakra. There could also be a situation where the kimono was made by an ally, but the ally has been secretly turned by the enemy, and now the kimono has a hidden trap.
Maybe Naruto wears the kimono as part of a diplomatic mission to another village. The kimono could be a symbol of the Hidden Leaf's culture. He would have to navigate the complex politics and etiquettes of the other village while looking elegant in his kimono. This could also be a chance for Naruto to show his growth and maturity as a ninja.
A possible plot twist could be that the suit has a mind of its own. Since it's from the Star Wars universe, it might try to influence Naruto towards the dark side, but Naruto resists. Another twist could be that Naruto discovers a hidden power in the suit that has nothing to do with the Force, but is related to some ancient Jedi or Sith knowledge that can be applied in the Naruto world in a unique way.
One idea could be that Naruto wears a kimono for a special diplomatic event in the Hidden Leaf. It could be a traditional kimono passed down in his family, and while wearing it, he has to learn the proper etiquette associated with it, which leads to some humorous situations as he's not used to such formality.
In this fanfiction, Harry might be transported to a parallel magical world in Japan while wearing the kimono. There, he has to adapt to the different magical customs and traditions. He could meet Japanese wizards and witches who help him on a quest to find a way back to his own world. Along the way, he learns about the significance of the kimono in their culture and how it can be used as a magical tool.
Maybe the seventh swordsman has a secret power that is unleashed when Naruto is in a dire situation. This power could be something that was thought to be lost or forgotten in the Naruto world, and its appearance changes the entire dynamic of the story.
One possible plot twist could be that Danzo is actually being controlled by an even greater enemy. So, when Naruto is about to defeat him, he realizes that there's a bigger threat behind Danzo. Another could be that Danzo reveals a hidden power that he has been suppressing all along and suddenly becomes much stronger than Naruto expected.
Maybe Naruto discovers that Matatabi has a hidden past that is linked to his own family. For example, his mother or father had a secret encounter with Matatabi before he was born, and this changes the way he views his family and his connection to Matatabi.
One possible plot twist could be that Naruto discovers Godzilla is being controlled by an evil force. So instead of just fighting Godzilla, he has to find a way to break the control. Another could be that Godzilla is actually a guardian of some sort, and Naruto misinterprets its actions as aggression at first. Then they end up teaming up against a greater threat.
A plot twist could be that Naruto discovers a long - lost connection between the Nine - Tails and some ancient power in Kumo. This could change the whole dynamic of his capture situation. Instead of being a victim, he might become an important figure in Kumo's internal power struggle. And this new - found connection could also lead to a new alliance between Konoha and Kumo in the end. Another twist could be that Naruto's capture was a ruse by Konoha's higher - ups to gain some secret knowledge in Kumo. Naruto was sent there on purpose, but things start to go wrong when Kumo figures out the plan.
One possible plot twist could be that Naruto's closest friend turns out to be secretly working for the enemy. Just when Naruto is about to make a final stand against the invaders, his friend betrays him, leaving him in a difficult situation. But Naruto, being Naruto, manages to find a way to turn the situation around and still save the village.