What are the possible plot twists in 'natsu become time fanfiction'?

One possible plot twist could be that when they time travel, they accidentally change a key event in the past that has a domino effect on their present. For example, they might prevent the formation of a guild that was crucial in their original timeline. Another could be that they find out they are related in some unexpected way through their time - traveling adventures. Maybe Ultear discovers she has a connection to Natsu's family that was lost in history. Or perhaps they time travel to a future where everything they know is in ruins, and they have to figure out how to prevent it in their present.

Another plot twist could be that the past they remember isn't actually real. It was all an illusion created by a powerful mage. When they find out, they have to figure out who the real enemy is and why they were put in this false past. This would completely shift the focus of the fanfiction from their relationship in the 'past' to finding out the truth behind the illusion.

One possible plot twist could be that Zeref actually doesn't want to fight Natsu seriously and has some hidden agenda. Another could be that Natsu discovers a new power during the fight that is related to his past or his true identity.

Well, one possible plot twist could be that Natsu has been hiding her true gender to be able to participate in male - dominated activities like a certain guild or sport. Another could be that she's in love with a male character, but is afraid to reveal her gender in case it changes how he feels. Or perhaps she has a special power that is related to her being a girl secretly, like a unique form of magic that only female dragonslayers can possess.

One possible plot twist could be that when they go back in time, they accidentally change something that has a huge impact on their future relationships. For example, Naruto might unknowingly prevent Sasuke from leaving the village in the past, which could completely change how they interact in the present they return to. Another could be that they find out a hidden truth about their parents or the village's past that was covered up, like a secret alliance that their predecessors were involved in.

A possible plot twist could be that the time travel was all a simulation created by an enemy to deceive the main character. So, the character thinks they are changing the past or future but are actually being manipulated within a false reality.

A really interesting plot twist could be that Steven goes back in time and discovers that the Diamonds had different motives than he originally thought. Maybe they were being influenced by some other force in the past, and by going back, he uncovers this mystery. Also, he could find out that some of the things he thought were his friends' ideas were actually planted by an outside source long ago. This would completely change his understanding of the relationships and history in the Steven Universe world.

One possible plot twist could be that when they travel back in time, they accidentally change a small event that has huge consequences in the future. For example, they might prevent a key meeting between two clans, which then alters the political landscape of the ninja world. Another could be that they find out that one of them was actually from that time originally and had their memories wiped in the future. This would completely change their understanding of themselves and their place in the ninja world.

One possible plot twist could be that Ragna discovers he is the cause of a major historical event that he previously thought was just a part of history. For example, he might find out that his actions in the past led to the rise or fall of a powerful kingdom.

One possible plot twist could be that Ichigo travels back in time and accidentally changes something that makes him not become a Soul Reaper in the first place. This would completely change his destiny and the future of the Soul Society. Another could be that he travels to a time when an ancient evil was first sealed away, and his presence there somehow weakens the seal, leading to a new threat emerging in his present time.