One idea could be to explore what would happen if the protagonist had to face a new villain who was even more devious than the original antagonists in the story. Another could be a scenario where she has to navigate through a different magical realm within the story's universe.
One interesting plot point is the development of the side characters. They often have their own unique stories and relationships that add depth to the overall narrative.
The development of her relationships is also a great plot point. She starts to form unexpected friendships and even romances that deviate from the original story. In the light novel, her interactions with the male leads are full of humor and charm as she tries to navigate the new world in a different way than the villainess was supposed to.
Perhaps in this fanfiction, the story explores how relationships from his past life are rekindled in the next. For example, his friendship with Ron and Hermione could have a new dimension as they meet again in different circumstances. And the concept of how his enemies from the past might be different or the same in his new life can also be a great plot. He might face new challenges related to his past actions and how they ripple through time.
Yes, it's finished. You can enjoy the complete story now.
The protagonist herself is very interesting. Her transformation from a villainess - to - be into someone trying to change her fate is captivating. Then there's the male lead. His relationship with the protagonist and his own character development, like his hidden depths and how he falls for the new - version of the protagonist, are quite engaging.
Sienna Nelson can be an interesting character to focus on as well. Since she is Katarina's friend, there could be stories about their friendship, like how they support each other through difficult times. And also, you could explore how she reacts to the changes that Katarina brings about in the world around them.
Perhaps the next - generation fanfiction could explore a world where quirks start to disappear suddenly. The children of the heroes must find a way to either stop this or adapt to a world without quirks. They could look into the origin of quirks and in the process, uncover secrets about the first generation of heroes that were long forgotten. This would force them to reevaluate what it means to be a hero in a changing world.
One idea could be about a new generation of ponies facing a mysterious magical threat that the older generations didn't encounter. They have to figure out how to use their unique skills and new friendships to overcome it.
The main plot often revolves around the heroine's attempts to rewrite her fate. In the 'list of my next life as a villainess light novel', she starts to use her knowledge of the game to her advantage. She tries to befriend characters who were originally her enemies in the game. This includes things like making amends with the female lead of the game and trying to form alliances with other important characters.
One idea could be exploring the Next Avengers facing a new, powerful villain from another dimension. This villain could have unique powers that the young heroes have never encountered before, forcing them to quickly adapt and learn new strategies.