Another interesting concept is that Ash is actually a long - lost Jedi in a past life. His connection to Pokémon in his current life is a manifestation of his latent Force abilities. He discovers an ancient lightsaber and starts to remember his Jedi training. His Pokémon friends then become his companions on his journey to restore balance to the Force in both the Star Wars and Pokémon universes.
Pikachu would probably be very curious. It might zap the lightsaber a bit to see what would happen, and then be in awe of the bright blade. It could also get a bit protective of Ash when he wields the lightsaber, as if it senses the added danger.
Another interesting plot could be a time - travel story where Ash and Cynthia are sent back in time to the early days of the Pokémon world. They have to adapt to the different rules and ways of training Pokémon back then while also trying to find a way back to their own time.
One plot idea could be that Ash is captured by a new and powerful villain who wants to use his Pokémon knowledge for evil. Another could be that he's captured by a group who mistake him for someone else and he has to prove his identity while trying to escape. Maybe he's captured by an ancient Pokémon that has some sort of grudge against trainers and he has to convince it that not all trainers are bad.
Another plot could involve a Pokémon contest where May is a contestant and Ash is there to support her. But something goes wrong with the contest rules due to a villain's interference. Ash and May then team up to expose the villain and make sure the contest is fair for all the contestants. It could also be a chance for their relationship to grow deeper as they face challenges together.
One idea could be Ash encountering a Legendary Pokemon that has lost its memory. Ash then tries to help it regain its memories while protecting it from poachers. Another could be a time - travel plot where Ash is sent back in time and has to team up with a Legendary Pokemon to prevent a great disaster from happening in the past that would change the future of the Pokemon world.
Another plot could be set in a world where a strange phenomenon is affecting Pokémon. Ash and Cynthia join forces to investigate. Along the way, they discover a new type of Pokémon evolution that has been hidden for centuries. As they work together, they start to develop a deep friendship that might turn into something more.
Maybe Ash's kids could have unique Pokémon partners that are hybrids or have special abilities. For example, a Pikachu that can fly or a Charmander with ice - type moves. This would make their journey really exciting as they explore the potential of these special Pokémon. And they could also meet some of Ash's old friends and rivals along the way, who could offer advice or challenges.
One interesting aspect is his growth. In fanfiction, we can see how he becomes a more skilled trainer over time. For example, he might learn new battle strategies.
A really interesting plot might be that Ash is chosen by an ancient dragon deity to be its champion. As a Dragon Master, he has to go on a quest to collect special dragon orbs scattered across different regions. Each orb gives him new powers or abilities related to dragon Pokémon. Along the journey, he faces challenges from other trainers who also want the orbs for their own purposes.
Another one is 'Ash and the Legend of Zelda'. Picture Ash traveling through Hyrule, using his Pokemon to help him solve the puzzles and fight the monsters in the Zelda world. It offers a whole new perspective on both the Pokemon and Zelda universes, with Ash's character bringing a new dynamic to the Zelda storyline.