Another thing that could occur is that they are forced to join Team Rocket against their will. This would create a whole different dynamic. They would be constantly trying to escape while also dealing with the internal politics of Team Rocket. It would be a story full of tension and adventure as they try to find a way back to their old lives and friends.
They could also change Team Rocket for the better. Maybe they would introduce a new sense of honor or fairness. Ash's determination and Misty's feistiness could influence the other members to be less about pure evil and more about having fun in their villainous deeds. In a fanfiction, this could lead to some really interesting character development for both Ash, Misty and the Team Rocket crew.
Well, in the 'Ash and Misty joins Team Rocket fanfic', they could be brainwashed by Team Rocket's technology or some devious plan. Once they join, they might be given new uniforms and tasks. They could be involved in stealing Pikachu again, but this time from the other side. It would create a whole new dynamic in the Pokémon world, with their old allies now becoming their enemies.
The plot might involve a power struggle within Team Rocket. Ash and Misty could be brought in because they possess certain skills or knowledge. For example, Ash's bond with his Pokémon could be seen as a valuable asset. Misty's understanding of water - type Pokémon might also be desired. However, they soon realize that they are being used in a power play between different factions of Team Rocket, and they must decide which side to take or find a way to break free from the whole mess.
Well, if Misty joins Team Rocket in fanfiction, it would be a huge shock to the other characters. Her friends like Ash would be completely bewildered. Maybe she's been tricked into it somehow, like being deceived by Team Rocket's false promises. This could lead to some really interesting plot twists. For example, she might be used to set traps for Ash and the others, but deep down still have some good in her that causes internal conflict within Team Rocket.
Well, perhaps they could have amazing adventures together. The Rocket trio might learn valuable lessons from Ash and his friends. They could form an unlikely but strong bond, helping each other out in battles and exploring new regions.
If Team Rocket turns Ash into a Pokemon, his relationship with his old Pokemon would change. His Pokemon might not recognize him at first. But as they sense his familiar spirit, they could try to protect him. And Ash, in his new form, could learn a lot about the true nature of Pokemon. He could discover secrets about their evolution, abilities, and the hidden powers within them that he never knew as a human trainer.
Well, if Ash joined Team Rocket, he'd probably bring a whole new dynamic. His skills as a trainer could be used in unexpected ways. Maybe he'd try to reform Team Rocket from the inside, using his kind heart and love for Pokémon to change their ways. He could also introduce new strategies for capturing Pokémon that are more ethical than Team Rocket's usual methods.
Well, in such a fanfiction, Ash might start using Team Rocket's sneaky tactics. He could learn from them how to be more devious in catching Pokémon. For example, he might use their elaborate traps instead of his usual straightforward battles. This would be a huge change from his normal good - guy image.
Ash joining Team Rocket could lead to some interesting character dynamics. He might start to question his own values. For instance, he's always been about friendship with Pokemon, but Team Rocket is more about using them for gain. This internal conflict could be a major part of the fanfic. Also, his relationship with Jessie, James, and Meowth would change drastically.
One thing that would happen is that his Pokémon battles would take on a whole new meaning. Instead of battling for the sake of becoming a Pokémon master, he might be battling to further Team Rocket's goals. His Pokémon would have to adjust to this new purpose. Also, Ash would probably have to wear Team Rocket's uniform, which would be a really strange sight for fans who are used to seeing him in his normal get - up.
Ash's character might become more conflicted. He has always been the hero, fighting against Team Rocket. But now, being part of them, he would question his own values. He might initially try to change Team Rocket from the inside, but as he faces more and more of their evil deeds, he would struggle between his loyalty to his new 'team' (out of a sense of obligation since he joined) and his true nature of being a Pokémon protector. Misty, on the other hand, would probably be more outspoken about her dislike for Team Rocket's actions and try to convince Ash to leave sooner.