In the 'Ash goes through the regions again fanfiction', Ash may face challenges that are different from his first time in the regions. For example, there could be environmental changes that affect Pokémon habitats and behaviors. He may also have to deal with new villainous teams or groups with different motives. His relationships with his Pokémon might deepen further as they face these new challenges together. Ash could also learn more about the history and lore of the regions, which might give him an edge in his adventures.
In this fanfiction, Ash might encounter new Pokémon species in the regions he revisits. He could also form new friendships or rivalries with trainers he meets along the way.
He might meet some of his old friends again, like Brock or Misty. Maybe they will join him on his new journey through the regions.
Perhaps Ash is on a quest to complete a special Pokémon research project this time. He travels through the regions, interviewing different trainers and Pokémon experts. He might get involved in some local Pokémon traditions and competitions that he hadn't experienced before. His Pikachu will surely be by his side, and they might develop new battle strategies against the diverse Pokémon they encounter.
Pikachu, of course. It's always been Ash's closest partner.
Maybe Ash will encounter new and rare Pokémon in the regions this time. He could also meet some old friends and have epic battles together.
Ash might encounter new Pokémon in Galar. For example, he could come across Grookey, Scorbunny or Sobble, the starter Pokémon of Galar. He may also meet new trainers and have exciting battles with them.
In an 'Ash goes to school fanfiction', Ash might make new friends at school. He could encounter different Pokémon - related challenges in a school setting, like having Pokémon battles as part of a school competition.
It could be a new evil team that wants to control all the Pokémon for their own greedy purposes.
In the 'Ash Goes to Rota Earlier' fanfiction, perhaps Ash might encounter different Pokémon species earlier than in the original story. He could form new and unique relationships with the local Pokémon trainers in Rota. Maybe he would discover a new training method specific to that region.
In this fanfiction, Ash might make new friends at Pokemon school. He could learn new training techniques for his Pokemon. Maybe he'll also face some tough competitions against other students.
Well, he may face new challenges in the trainer school. There could be tough exams on Pokémon knowledge and battle strategies. He might struggle with some theoretical parts but shine in the practical battle tests.