Perhaps he'll share his new adventures and the knowledge he's gained from traveling different regions. He could inspire the new generation of Pokémon trainers in Pallet Town to aim for greater things.
The other trainers in Pallet Town might look up to him even more now. They could gather around him, asking for stories about his battles and the rare Pokémon he's encountered. It would be a great opportunity for Ash to pass on his experience.
In this fanfiction, Greninja might meet some of the classic Pokemon characters in Pallet Town. Maybe it'll encounter Ash's Pikachu and they'll have an interesting interaction, like a friendly battle or a race through the town.
There could be the discovery of rare Pokemon. Maybe a young trainer stumbles upon a shiny Pikachu in the outskirts of Pallet Town. It's a once - in - a - lifetime find and sets off a chain of events where other trainers become envious and try to steal it.
One common theme is Ash's journey starting from Pallet Town. It often details his early days, like getting his first Pokemon from Professor Oak. Another theme could be his relationships with the people in Pallet Town, such as his mother.
It might be a story that combines the unique world of Pokemon with the role of a mayor in Pallet Town. It could involve things like the Pokemon mayor making decisions on how to improve the infrastructure for Pokemon battles, or how to better protect wild Pokemon habitats in and around Pallet Town. It could also be about the interactions between the Pokemon mayor and the human trainers and residents of the town.
Well, perhaps Ash comes back with new skills and a sense of purpose. He might be determined to protect Serena even more than before. In the fanfiction, he could use his war - learned strategies to deal with any threats that come their way. And their relationship could evolve into a deeper, more mature love as they face new challenges together.
Well, one possibility is that Ash has changed a great deal due to the war. Maybe he has new skills or a more hardened personality. He could struggle to fit back into his old life with Serana. For example, he might be haunted by the memories of the war and find it difficult to be as carefree as he once was with her.
In the fanfiction, it might be that Misty has some sort of ulterior motive for stealing the Pokemon. Maybe she's being controlled by an evil force or she thinks it's the only way to protect the Pokemon from something worse. But still, Ash would not easily accept her actions and would likely fight to get the Pokemon back to its rightful place.
Well, if Ash turns into a Pokemon in a fanfic, he might gain new abilities. For example, he could use Pokemon moves like Pikachu's Thunderbolt. He'd also have a different perspective on the Pokemon world. Maybe he'd understand their language better and be able to communicate with them more easily. This could lead to new adventures where he teams up with other Pokemon in ways he couldn't before.
Well, he might be really confused at first. Maybe he'd start to notice strange things about the world around him that don't quite fit the normal Pokemon universe he knows. He could see people acting in ways that seem more like how fans write in fanfictions.