One idea could be James struggling to understand the wizarding world his child is part of. For example, he might be baffled by the concept of magic wands and how they work. Another plot could be him trying to protect his child from the darker elements of the wizarding world without having any magic himself. He could rely on his Muggle skills like his knowledge of technology or self - defense techniques.
In this AU, James could face discrimination from some in the wizarding community because he's a Muggle. He has to fight against these prejudices while also raising his magical child. He might try to form an alliance with other Muggle - born families or those who oppose discrimination. His journey could involve him becoming an advocate for Muggle - wizard relations within the wizarding world.
Well, it would change the relationship between James and his child a great deal. Instead of being able to teach his child magic, he'd be learning about it alongside them. There would be a sense of mutual discovery. Also, his relationship with his wizarding - in - law (if his partner is from a wizarding family) would be more complex. There could be some tension as they come from such different worlds.
A cool plot could be that a wizard decides to study at a Muggle school to understand Muggle culture better. He might struggle with basic Muggle things like using a calculator or writing with a pen instead of a quill. Meanwhile, he could use his magic in very subtle ways to help his Muggle classmates, like making a wilted plant in the classroom come back to life. This would create a lot of humorous and heartwarming situations as he tries to fit in.
One idea could be a Muggle-born wizard who tries to hide their magical abilities in Muggle society while also secretly helping other wizards in need. For example, they could use magic subtly to fix things around their Muggle neighborhood, like making a broken streetlight work again without anyone suspecting it was magic.
One idea could be that the houses are like different cliques in high school. For example, Gryffindor could be the brave and popular kids who stand up to bullies. Slytherin might be the ambitious group that is always vying for the top positions in school clubs. Another plot could involve a high - school version of the Triwizard Tournament, but with normal high - school sports and academic challenges instead of magical ones. And a third idea is that there's a mystery about a hidden room in the school that only certain students can find, and it has secrets related to the founders of Hogwarts.
One idea could be that Harry discovers a new, hidden magical ability within himself that helps him in the final battle against Voldemort. For example, the ability to communicate with the spirits of Hogwarts founders for guidance. Another could be that the relationships between the characters take a different turn. Maybe Hermione and Ron have a huge fight early on and Hermione teams up with Draco for a while out of necessity, which changes the dynamics of the whole group. Also, Neville could have an even more prominent role, leading a secret group of students who are training in a new form of magic that they hope will give them an edge in the fight.
Maybe in this fanfiction AU, the relationship between Harry and Hermione develops romantically during the fourth year. This would change the dynamics of their friendship and how they interact with Ron. They could face challenges together in the tournament, relying on their newfound feelings to get through difficult situations.
Perhaps the Muggle Prime Minister is accidentally affected by a spell that makes him see magical creatures everywhere. He then has to deal with the chaos while also trying to keep it a secret from the public. He might start to question his own sanity until a wizard comes to his aid.
Well, a plot might involve Harry - now James - trying to change the fate of his family. He could focus on protecting Lily in a different way than James did in the original story. Maybe he'd use his knowledge of magic from his past life to create new spells or defenses. Also, his relationship with Snape could be very different. Since he was Harry before, he might understand Snape's feelings better and try to make amends or change the animosity between them.
One plot idea could be that Fem Harry Potter travels back in time and meets James Potter. They form an unexpected friendship and she has to navigate the differences between their time periods while also dealing with her own identity in this new situation.
One idea could be that they return with new magical abilities. Maybe James has the power to control time briefly, which he uses to prevent some small tragedies in the wizarding world. Another could be that they return to find that Harry has changed the wizarding world in ways they never expected, and they have to adapt to this new world order.