You could also create a story where a new, mysterious Pokemon appears that has the power to disrupt the balance between different Pokemon types. The protagonist of the fanfic then has to figure out how to deal with this new Pokemon and restore the balance. This could involve teaming up with different generations of trainers and Pokemon to overcome this threat.
One idea could be to explore the backstories of the gym leaders before they became leaders. For example, how did they start their Pokemon journey and what challenges they faced to reach their position.
Another interesting plot could be a time - travel story within the Pokemon Generations universe. A character could go back in time and meet the early versions of their favorite Pokemon or trainers, and this could change the course of Pokemon history. Maybe they prevent a certain Pokemon species from going extinct in the past, which then has a huge impact on the present Pokemon world.
A third idea is to focus on a tournament among the new generation. But instead of just physical combat, it also includes challenges related to knowledge of the Dragon Balls' history and power. This would not only test their fighting abilities but also their understanding of their own heritage.
One idea could be exploring the relationships between the new generation and the old. For example, how Boruto's group interacts with the likes of Naruto and Sasuke. Maybe they go on a joint mission where the older shinobi teach the younger ones some old - fashioned ninja skills that have been long forgotten.
Well, a plot could revolve around Janine being involved in a Pokemon tournament where she uses her unique Poison - type Pokemon in unexpected ways. She might face some opponents who underestimate her because of her small stature but she proves them wrong with her brilliant strategies. Or perhaps a story where Janine discovers an ancient Pokemon artifact that has the power to control all Poison - type Pokemon and she has to protect it from evil forces.
A great plot could involve a world where Skin Pokemon are the outcasts because their changing abilities are seen as untrustworthy. A group of trainers decides to prove that Skin Pokemon are just as loyal and worthy as any other type. They form a sort of rescue team for Skin Pokemon in danger and work towards changing the perception of these unique creatures in the Pokemon world.
Maybe a fanfic where a trainer gets transported into the Pokemon world from our own world. They have to quickly learn the rules and make friends with Pokemon to find a way back home while also exploring the different regions and their unique Pokemon.
One idea could be a Pokemon scientist discovers a new type of Pokemon evolution that is triggered by an unusual environmental factor. For example, a certain type of rare crystal found deep in a cave that causes a Pokemon to evolve into a form never seen before. Another plot could involve a scientist trying to find a way to communicate with Pokemon on a deeper level, perhaps by creating a device that can translate their thoughts. Or, a Pokemon scientist might be on a quest to understand why some Pokemon have unique abilities that seem to go against the known laws of Pokemon biology.
A great plot could involve a group of friends in Alola who enter a Pokemon tournament with their underdog team. They face tough opponents but through their bond with their Pokemon and some clever strategies, they start to make a name for themselves in the tournament. Along the way, they also learn more about the different Alola Pokemon species and their habitats.
Well, you could have a story where a new type of Pokemon is discovered that has vampire - like characteristics, like draining the energy of other Pokemon instead of blood. The main character, a young trainer, has to figure out how to deal with this new threat. Or perhaps there's a vampire Pokemon that was once a normal Pokemon but was cursed. It then tries to find a way to break the curse while befriending a group of trainers.
One idea could be Jasmine going on a journey to find a rare steel - type Pokemon to strengthen her team. Another could be her mentoring a young trainer who has an affinity for steel - type Pokemon. Maybe she could also get involved in a mystery related to a strange steel - type Pokemon behavior in her hometown.
One idea could be exploring the backstory of how Professor Oak started his research on Pokemon. Maybe he had a special encounter as a young trainer that inspired him to study Pokemon evolution and behavior.