A really interesting fanfiction plot could involve the creation of a new magical school. This school could be a blend of the teaching methods from Hogwarts and the more free - spirited approach in the Fantastic Beasts world. Characters from both series could come together to help establish this school. There could be challenges like dealing with different magical cultures and traditions. And of course, there would be some sort of conflict, perhaps from those who oppose the new school's unorthodox ways.
Well, a great plot for a fanfiction could be a time - travel story. Imagine if a character from the Fantastic Beasts era accidentally travels to the time of Harry Potter. They could have a hard time adjusting to the different magical society. Also, a story about a magical heist in Gringotts involving characters from both universes would be exciting. Maybe the thieves are trying to steal a powerful artifact that has the potential to change the course of magic in both the Fantastic Beasts and Harry Potter worlds.
One idea could be exploring the backstory of a minor character from the series in the fanfiction. For example, delving into the early life of Luna Lovegood's father. Another could be a story where a new magical creature is discovered in the Forbidden Forest and how the Hogwarts students interact with it. Or perhaps a fanfiction where the events of the Fantastic Beasts movies intersect more directly with the main Harry Potter storyline, like Newt Scamander visiting Hogwarts during Harry's time there.
One idea could be that Newt Scamander visits Hogwarts to give a special lecture on fantastic beasts. During his visit, he discovers a hidden magical creature that has been living in the Forbidden Forest for centuries. Harry Potter and his friends get involved in helping Newt study and protect this new discovery.
One idea could be a story where Newt Scamander's magical beasts escape into Hogwarts. The students and teachers have to work together with Newt to recapture them. It would be a chaotic yet fun scenario as the beasts interact with the Hogwarts environment and its inhabitants.
Perhaps a dark wizard in the Fantastic Beasts world tries to use Merlin's power for evil. Merlin has to team up with Newt and Tina to stop this wizard. Along the way, Merlin discovers new magical abilities within himself as he faces the different magical challenges presented by the Fantastic Beasts world.
One idea could be an OC who is a secret healer for magical creatures in the Fantastic Beasts universe. They could have a special connection with a rare and endangered beast, like a Thunderbird. The OC's mission could be to protect the beast from dark wizards who want to use its power for evil.
One interesting storyline could be about the origin of some of the fantastic beasts. For example, a fanfiction might explore how the Hippogriff came to be. Another could be a story that focuses on the relationships between different characters from both series in a new and unexpected way, like a friendship between a Hogwarts student and a wizard from the Fantastic Beasts era.
A great storyline could also be a crossover within the Harry Potter universe. Imagine a situation where characters from the Harry Potter books meet those from the Fantastic Beasts world. Maybe Harry and his friends stumble upon Newt's case of beasts during one of their Hogwarts adventures, and they have to work together to solve a problem caused by a mischievous beast that has escaped.
One idea could be a crossover with the Harry Potter universe. For example, Newt Scamander could meet Harry and his friends and they could go on an adventure together to find a new and extremely dangerous fantastic beast that has escaped from Newt's case. Another idea is a crossover with a historical fantasy world, like Camelot. Newt could travel to Camelot and help King Arthur's court deal with a magical beast that is terrorizing the kingdom.
One idea could be to create a crossover where Naruto characters visit the world of Fantastic Beasts. For example, Naruto could befriend Newt and they go on an adventure to find a lost bijuu that has somehow ended up in the Fantastic Beasts universe. It would be exciting to see how Naruto's ninja skills would interact with the magic in that world.
A great plot for a Potter Manor fanfiction could involve a mystery that surrounds the manor. For instance, strange noises at night lead Harry to uncover a long - forgotten chamber. It could also be about Harry restoring the manor to its former glory, perhaps with the help of Hermione's research on ancient magic used in the construction of such manors.
One interesting plot idea could be exploring what would happen if Harry had a different upbringing, like being raised by the Malfoys. It would completely change his view of the wizarding world and his relationships. Another idea might be a time - travel fanfic where Harry goes back to the Marauders' era and interacts with his parents and their friends. This could lead to him preventing certain tragedies or changing the future in unexpected ways. And then there's the concept of a fanfic where the roles are reversed, and Voldemort is the one trying to protect the wizarding world from a greater evil, with Harry being the main antagonist.