A really cool plot twist is when the time - traveling character realizes that the 'present' they thought they came from was actually an alternate future created by a previous time - travel mishap. This forces them to re - evaluate everything they thought they knew and try to fix not only the past but also the future they thought was their original present. It makes for a very engaging and mind - bending read.
In some fanfics, a character travels back in time to stop a dark wizard from getting a powerful artifact, only to find out they were the one who accidentally led the dark wizard to it in the first place. It's a great plot twist that adds a lot of depth to the story.
Some fanfictions have a plot twist where a minor character from the original Battle of Hogwarts turns out to be a key figure in saving the day. For example, a previously unnoticed student might have a hidden power that changes the outcome of the battle.
In some fanfics, a time - traveler might end up being the cause of Grindelwald's rise instead of stopping it. For example, in 'The Unintended Consequence', the main character's actions in the past accidentally give Grindelwald more power.
One interesting plot twist could be Naruto changing the past in a way that completely alters the future relationships. For example, if he manages to prevent certain tragedies from happening to his friends' families, it could lead to very different dynamics. Maybe Sasuke's family wouldn't be massacred, and Sasuke would grow up in a completely different environment, which might change his entire attitude towards the village and Naruto himself. This could lead to a whole new set of adventures and challenges for Naruto as he tries to adapt to this new timeline.
One great Hogwarts Legacy time travel fanfiction is 'Time's Thread in Hogwarts Legacy'. It follows a character who accidentally travels back in time and has to navigate the past while not changing the future too much. The author does a wonderful job of weaving in the game's lore and creating new, exciting adventures within the familiar Hogwarts setting.
One of the most interesting plot twists could be when a character from the original 'The Godfather' story travels back in time and accidentally changes a major event that alters the whole family's future. For example, if Michael Corleone went back and prevented his father from being shot, it would completely change the power dynamics and the family's path in the mafia world.
One interesting plot twist could be that a Shiba character from the past travels to the future and discovers that their clan has a completely different role or status. For example, they might find that the Shiba clan, which was once powerful, is now in a state of decline. Another twist could be related to a time - travel - induced change in the relationship between the Shiba and other important clans in the Bleach universe. Maybe a long - standing feud is suddenly resolved because of an event that occurred during the time travel. A third possibility is that a Shiba character's time travel accidentally alters the course of a major battle in the Bleach storyline, leading to unforeseen consequences for all the characters involved.
A really cool plot twist might be that Xander, as a girl, travels back in time and falls in love with a character who is an ancestor of one of her friends in the present. This would create a moral and emotional dilemma for her. Also, she could find out that in this different time period, there is a prophecy about a female figure (her) that is related to saving the world from a great evil. So, instead of being a sidekick - like character as she was as a male, she becomes the central figure in the time - travel adventure, which is a huge change from the original Btvs storyline.
They could time travel to a future where everything they knew is in ruins. In this desolate future, they find out that their actions in the past led to this destruction. Now they have to work together to go back in time again and correct their mistakes. Sakura uses her intelligence to figure out what went wrong, while Madara uses his combat skills to protect them during their journey through time.
A really cool plot twist would be if during their time travel, they find out that time itself is a sentient being or is being controlled by an unknown force. This force has been manipulating events in the Soul Society and the human world all along. Ichigo and Urahara then have to figure out how to deal with this new discovery, whether to fight it or try to negotiate, while also trying to find their way back to their own time.
Another cool plot twist is when they time travel and get stuck in the wrong bodies. James Sirius might end up in the body of someone else in the past, like a Death Eater, and has to figure out how to get back to his own body while also not ruining the timeline. It adds a whole new layer of complexity and humor to the story.