A cool plot twist might be that the zombies are not actually undead but are under some sort of mind - control jutsu. And the real enemy is a powerful ninja who is using the zombies as pawns to take over the ninja world. Also, what if some of the main characters start showing signs of turning into zombies but still have control over their actions? This would create an internal conflict within the group. They'd have to decide whether to trust their friends or not. And it could lead to some really emotional and tense moments in the fanfiction.
One interesting plot twist could be that the zombie outbreak is actually caused by a rogue ninja's experiment gone wrong. Maybe an old enemy of the Hidden Leaf Village who was trying to create a new type of weapon but instead created the zombie virus. Another twist could be that some of the zombies retain their ninja abilities. So, you'd have zombie - ninjas who could still use jutsu, making them much more dangerous. Or perhaps there's a cure hidden within an ancient scroll that only a few characters can decipher, adding a race - against - time element to the story.
One possible plot twist could be that some of the devils in Highschool DxD turn out to be immune to the zombie virus due to their demonic nature. This could lead to a power struggle within the group as they decide whether to help the humans or use the situation to their advantage.
A possible plot twist could be that Naruto's blindness was actually caused by an enemy's secret jutsu that was meant to be permanent, but it turns out that Naruto's Uzumaki bloodline has a hidden ability that can reverse the blindness under certain conditions. This would add an element of mystery and hope to the story.
A great plot twist could be that Naruto turns out to be a half - vampire. It would completely change his character arc and how others in the Naruto world perceive him.
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.
One interesting Naruto outbreak fanfiction could be about a new and mysterious disease that spreads in the Hidden Leaf Village. The characters have to work together to find a cure while also dealing with the panic among the villagers.
One common plot twist could be that Naruto discovers some of his friends have been secretly bitten and are turning into zombies. For example, Sasuke might get bitten but try to hide it from Naruto at first. Another could be that the zombie virus is actually created by an old enemy of the Hidden Leaf Village who has found a new way to attack. Maybe Orochimaru had something to do with it and his experiments went wrong, leading to the apocalypse.
One interesting plot twist could be that Naruto discovers he has a long - lost sibling from a different village. This would completely change his perception of his family and his place in the ninja world.
A possible plot twist in Naruto and Hinata married fanfiction is that they find out there is a prophecy related to their union that affects the entire ninja world. Or perhaps, an old enemy resurfaces and targets Hinata because of her connection to Naruto. This forces Naruto to make difficult choices between protecting the village and saving his wife. Also, there could be a situation where Hinata's family disapproves of something Naruto does as Hokage, creating tension in their marriage.
Another plot twist could be that one of the main Lion King 2 characters, like Kovu, is actually a reincarnation of a powerful Naruto character. This would change his role completely. He might have memories of his past life as a ninja and use those skills and knowledge to deal with the problems in the Pride Lands. It would also create a really interesting dynamic between him and the other lions, who don't understand his strange new abilities at first.
One interesting plot twist is if Naruto discovers that Kurama has been secretly protecting him from other, more sinister threats that he was unaware of. For example, there could be a group of rogue ninjas who have been trying to steal Kurama's chakra for a long time, but Kurama has been using his own power to keep them at bay without Naruto knowing. This would change Naruto's perception of Kurama from just a source of power to a true protector. Another aspect could be that this discovery makes Naruto more determined to become stronger to help Kurama in return. He might start to train in new ways or seek out different types of power -ups that can help him protect Kurama better. This could also lead to a shift in their relationship dynamic, with Naruto taking on more of a caretaker role in some situations.