One interesting plot twist could be when a character who was originally a minor antagonist in the original series becomes a key ally in the 'back to the past' scenario. For example, in some fanfictions, Draco Malfoy might end up joining Harry's side early on, changing the whole dynamic of the story. Another could be when a major event from the original series is prevented, like Sirius Black's death. This creates a whole new set of consequences and relationships that the author can explore. And sometimes, the way magic is used in these fanfictions can be a plot twist. Maybe a character discovers a new type of magic that wasn't in the original books, which gives them an unexpected advantage in the 'back to the past' world.
In some 'back to the past' Harry Potter fanfictions, a great plot twist is when the time - traveling Harry or other characters accidentally change the past in a way that completely alters the Hogwarts houses. For instance, Slytherin house could end up being filled with more kind - hearted students due to the changes made in the past. Also, when a character from the future, like Hermione, uses her knowledge of future events to manipulate the past in a way that was not expected. She might try to change the way Voldemort rises to power, but in doing so, she creates new and unforeseen threats. It's really exciting to see how these changes unfold.
In some fanfictions, a big plot twist is that Jacob turns out to be related to one of the major wizarding families in the Harry Potter universe. This completely changes his status and the way other characters interact with him. It adds a whole new layer of drama and mystery to the story.
One interesting plot twist could be that Harry goes back in time and accidentally changes the sorting of the houses. This would lead to different friendships and rivalries. For example, if he made it so that Draco was sorted into Gryffindor, it would completely change their dynamic. Another could be that he changes the outcome of a Quidditch match in the past, which then has a ripple effect on the school's morale and subsequent events. Maybe Gryffindor loses a crucial match they were supposed to win, and it makes them more determined in other aspects.
One interesting plot twist could be that Jasper's vampire abilities are used to protect Harry from a new and unexpected dark magic. For example, Jasper might be able to sense a dark wizard's intentions before they attack Harry. Another twist could be that they discover a hidden connection between the wizarding world and Jasper's vampire world, like a shared ancient magic that only they can unlock together. It could also be that Jasper's ability to control emotions helps Harry deal with his own inner turmoil caused by Voldemort's presence, in a way that no one else in the wizarding world can.
One interesting plot twist could be that Harry goes back in time and accidentally changes the sorting of some of the characters. For example, Draco Malfoy could end up in Gryffindor instead of Slytherin, which would completely change their relationship and how events unfold in the wizarding world.
Perhaps in the fanfiction, when time is turned back, Hermione decides to focus on different areas of magic. Instead of being all about books and rules, she starts to explore dark magic in order to stop Voldemort before he rises. This could put her at odds with Harry and Ron. Also, if time is turned back far enough, Dumbledore could be a student again. He might make different choices that change the whole wizarding world's future, like not getting involved with Grindelwald, which would have a huge impact on the events leading to Voldemort's rise.
One interesting plot twist could be when Caesar turns out to be a long - lost wizard. This completely changes the dynamic as he then has to learn about his magical heritage while also dealing with the existing Harry Potter world's problems.
In some 'Harry Potter Sith fanfiction', a plot twist could be that a seemingly good character is actually being influenced by Sith powers all along. For example, a teacher at Hogwarts who is secretly using Sith mind - control techniques on students to further their own dark agenda.
In some fanfics, a plot twist could be that a character from The Originals turns out to be related to a major Harry Potter character. For example, it might be revealed that a vampire has a long - lost wizard relative in the Potterverse. It completely changes the dynamics of how the two worlds interact.
A really interesting plot twist in 'Hellsing in the Wizarding World' is when the magic from Hogwarts starts to affect the vampires in Hellsing in unexpected ways. For example, some vampires gain the ability to use wizard spells, which turns the whole story on its head. It makes for a really unique take on how the two worlds can interact on a magical level.
A really interesting plot twist could be when the Daleks, who are known for their technology and destruction, are somehow outsmarted by the magic of a first - year Hogwarts student. It goes against their usual superiority in their own universe.