Another option for a main character could be the son or daughter of Lloyd. They would carry the weight of being the descendant of the Green Ninja. This character might struggle with living up to their father's legacy while also trying to carve out their own identity in the world of Ninjago.
There could also be a character who is not directly related to the original ninja but has a special connection to the elemental powers. Maybe a young girl who discovers she has an ability to control an element that was previously thought to be lost. She would bring a fresh perspective to the group of the next generation and have to prove herself to the others.
Definitely the children of Ladybug and Chat Noir. They would inherit the Miraculous and have big shoes to fill. Their personalities could be a mix of their parents' traits, like the daughter being as brave as Ladybug and having Chat Noir's sense of humor.
One possible main character could be the son or daughter of Iron Man. They might inherit his genius and some of his tech - savvy ways. They could also have a bit of his cocky attitude at the start but grow into a true hero throughout the story.
The main character could be a person who was once a part of an evil organization but has had a change of heart. In the 'pokemon next generation fanfiction', they use their knowledge of the organization's ways to protect the new generation of Pokemon. They start with a single Pokemon that they rescued from the organization and build a team as they go, facing challenges from their former comrades and also making new friends among other trainers.
The proteges of the Avengers could be main characters too. Maybe Hawkeye has been training a young archer who has amazing accuracy but lacks confidence. This protege could be part of the next - generation Avengers and grow throughout the fanfiction, facing challenges that force them to become more self - assured.
New students from different kingdoms could also be main characters. For instance, a student from Vacuo who has a unique sand - based fighting style. Or a student from Atlas who is a tech genius and uses advanced weapons. They could team up with the descendants of Team RWBY to form a new, diverse team.
Well, it could include characters like Cassie Lang. Since she has shown an interest in following in her father's (Scott Lang) footsteps. She might be a key member of the next - generation Avengers in a time travel fanfiction. Another could be Kate Bishop. She has already proven herself as a skilled archer and fighter, and her abilities would be very useful in a time - travel adventure. And there's also Riri Williams, the young genius who could build amazing technology to help with the time travel and any problems they encounter in different time periods.
The children of Serena and Dan could be main characters. Maybe a daughter who has her mother's charm and her father's love for writing. She could be torn between the glamorous Upper East Side life and her own artistic pursuits.
Definitely the children of the main characters from the original series. For example, Eleven and Mike's child could have some really interesting powers and a complex personality. They would inherit the legacy of their parents and face new challenges in Hawkins.
A boy who has a special talent, like being able to communicate with animals in the arena. This ability gives him an edge in the Games, but also makes him a target. He has to decide whether to use his talent for survival or to help others.
Definitely the children of Percy and Annabeth. Their kid would inherit some of their parents' skills and personality traits. Maybe they'd be a great strategist like Annabeth and have Percy's water - related powers. Another main character could be the son or daughter of Nico di Angelo. They'd likely have some spooky underworld - related powers and a brooding personality.