One interesting plotline could be Peter Pan's struggle to adapt to the rules and norms of Storybrooke. Since he's used to being the carefree ruler in Neverland, having to abide by the laws in Storybrooke would be a big change for him. Another could be his interactions with the other fairy - tale characters there. Maybe he forms an unlikely friendship with a character who was once his enemy in their original stories.
In some fanfictions, a great plotline is Peter Pan trying to find a way back to Neverland from Storybrooke. He might enlist the help of other characters who have knowledge of magic or different realms. Also, there could be a plot where he discovers a new power within himself because of the unique magic in Storybrooke. This power could either be a threat or a way to save the town from an impending danger.
Henry Mills is also commonly paired with Peter Pan in fanfiction. Henry's connection to the world of fairy tales and his inquisitive nature might draw him to Peter Pan. They could form a mentor - mentee relationship, with Peter Pan teaching Henry things about the magic he doesn't know yet, or they could be on opposite sides in a conflict within Storybrooke.
One possible plotline could be that Peter Pan hypnotizes the Lost Boys to forget a particularly dangerous encounter they had with Captain Hook, so they can remain fearless and carefree. Another could be that he hypnotizes Wendy to see the magic of Neverland more vividly, enhancing her experience there.
One plotline could be that Tinkerbell gets jealous of Peter Pan's attention towards Wendy. So, to show Peter that she has feelings for him too, she plants a surprise kiss on him. This could lead to Peter realizing his own feelings for Tinkerbell and a new dynamic in their relationship.
One possible plotline could be that Peter Pan kidnaps Wendy because he wants her to be the mother figure for the Lost Boys forever. He might think that in the real world, Wendy will grow up and forget about them, so he takes her to Neverland against her will at first. But as the story progresses, Wendy starts to understand the charm of Neverland and forms a deeper bond with Peter and the Lost Boys.
Well, you could write a fanfiction where Peter Pan and Wendy grow up but still remember their adventures in Neverland. They could try to recreate that sense of magic in the real world, perhaps by opening a place where children can experience a bit of Neverland. Or, what if a new villain emerged in Neverland and Peter and Wendy had to team up in a different way than before to defeat them? They might have to use Wendy's more grown - up thinking and Peter's knowledge of Neverland's secrets.
One plot idea could be a modern - day Peter Pan who discovers the real world has changed a great deal. He has to adapt to technology and new social norms while still maintaining his Neverland spirit. Another could be a story where Peter Pan meets a character from another fairy - tale realm and they go on an adventure together in Neverland. Maybe a girl from a strict, old - fashioned society stows away on his ship and he has to teach her how to have fun and be free.
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 interesting aspect could be the unique interpretations of the original Peter Pan story. For example, new characters created as original characters (OCs) might bring fresh perspectives. They could have different relationships with the existing characters like Peter, Wendy, and the Lost Boys. Maybe an OC could be a new friend or a rival, adding more depth to the story's social dynamics.
There are fanfictions where a female character is inserted into the original Peter Pan story as a sort of guide for Peter. For example, she could be from a different magical realm and helps Peter understand new forms of magic, which in turn changes the dynamics of his relationship with Captain Hook and the others in Neverland.
Well, you could write a fanfiction where Peter Pan loses his ability to fly and Wendy has to help him find a way to regain it. It could involve them going on a journey across Neverland, facing various challenges and meeting new characters along the way. They might have to seek the help of the mermaids or the Lost Boys. This would not only test their friendship but also show their growth as characters.