One idea could be a story where Jeremy Sumpter's Peter Pan character visits the modern world. He could be shocked by all the technology and have to learn how to adapt. Maybe he meets a young girl who is a huge fan of the Peter Pan story and she helps him understand this new world.
Another plot could involve Peter Pan facing a new villain in Neverland. This villain could be a dark force that is slowly corrupting the magic of the island. Jeremy Sumpter's Peter Pan has to find a way to stop this, perhaps by seeking help from some of the more reclusive creatures in Neverland that he has never interacted with before. He goes on a journey across the island, facing various challenges along the way.
A third plot idea could be a love story. Peter Pan, as played by Jeremy Sumpter, falls in love with a mermaid in Neverland. But there are rules in Neverland that forbid such a relationship. They have to fight against the odds, including the disapproval of the other mermaids and the Lost Boys. It could be a story of forbidden love and sacrifice.
To write a character - driven story, you should also explore Peter Pan's relationships. With the Lost Boys, Tinker Bell, and Captain Hook. Show how these relationships affect him and how he responds. If he has a falling out with one of the Lost Boys, how does that change him? How does his relationship with Tinker Bell, which is both affectionate and sometimes frustrating, shape his actions? These relationship - based challenges can be the core of a character - driven story.
One idea could be to explore what would happen if Peter Pan grew up for a short time in Neverland. Maybe he gets hit by a magical spell that gives him a taste of adulthood, and he has to deal with new emotions like regret for not spending more time with Wendy. Another could be a story from Tinker Bell's perspective, showing her jealousy in a more complex way and how she tries to win Peter's heart back from Wendy in a series of elaborate schemes.
One idea could be exploring Wendy's life back in London after her adventures in Neverland. Maybe she's having a hard time adjusting and misses Peter terribly. Another could be a story where Peter brings some of the Lost Boys to London for a visit and the chaos that ensues. A third idea might be a tale where Wendy's younger siblings grow up and start to doubt the existence of Peter Pan, but Wendy has to convince them he's real.
One idea could be that Baelfire gets lost in Neverland and Peter Pan has to decide whether to help him or use his situation to his advantage. Maybe Baelfire has a special power that Peter Pan wants for himself.
One idea could be that Peter Pan and Merlin meet in a magical realm between Neverland and Camelot. They team up to fight a common enemy, like an ancient evil sorcerer who is trying to steal the magic from both their worlds. Peter's ability to fly and his eternal youth could be combined with Merlin's powerful magic skills to create a really cool adventure.
One idea could be that Emma, a modern - day girl, somehow gets transported to Neverland. She then has to learn to adapt to the strange and magical world. Peter Pan is initially suspicious of her but as they go on adventures together, like facing Captain Hook, they start to form a strong bond.
One idea could be that Moira gets lost in Neverland and Peter Pan has to find her before the pirates do. He discovers new parts of Neverland in the process.
A possible plot is that Wendy gets lost in a previously unexplored part of Neverland. Peter Pan and the Lost Boys go on a frantic search for her. While lost, Wendy discovers a hidden tribe of magical creatures that are shy and have been avoiding contact with the Lost Boys. Wendy befriends them and they help her find her way back. This could lead to a new alliance between the Lost Boys and these creatures.
Well, a really cool plot for Tinkerbell and Peter Pan fanfiction might be that Tinkerbell accidentally breaks a powerful magic item in Neverland. This causes chaos as the magic starts to go haywire. Peter Pan and Tinkerbell then have to go on a quest to find the pieces and fix it. Along the way, they might encounter some old foes who are taking advantage of the situation. Also, they could discover secrets about Neverland's past that they never knew before. This would not only test their friendship but also their courage and wits.
Perhaps there could be a situation where the White Witch from Narnia teams up with Captain Hook. They both have a thirst for power and a dislike for the heroes in their respective stories. The Pevensie children and Peter Pan would then have to put aside their differences and work together to defeat this new and dangerous alliance. They could combine their unique skills, like the Pevensies' strategic thinking from their battles in Narnia and Peter Pan's ability to fly and outwit his enemies in Neverland.