Maybe the story could focus on how the next generation discovers a long - lost technique in Ninjago. This discovery could cause a rift among them as some think it's too dangerous to use, while others see it as their only hope against an emerging threat. They would need to work through their differences to decide what to do with this new power.
One idea could be the next generation facing a new, more powerful enemy that combines the powers of all the previous villains. They'd have to learn from their parents' stories and develop new skills to defeat it.
A cool plot could be that the next generation has to travel to a different realm that their parents never visited. In this realm, the rules of Ninjago are different. They encounter strange creatures and a unique form of elemental power. They must adapt quickly, make new alliances, and figure out how to bring this new knowledge and power back to Ninjago to save it from a mysterious danger.
A plot idea could be that the next generation of Miraculous holders has to team up with some of the old villains' descendants who are now on their side. They have to overcome the prejudice from the public who don't trust them. Together, they work to stop a new evil that is threatening to destroy the balance between the Miraculous powers and the normal world.
One idea could be about a new type of Pokemon that emerges in the next generation. Maybe it's a fusion of two existing types due to some strange environmental phenomenon. Another could be a story where the main character is a descendant of a famous Pokemon trainer from the previous generations and has to live up to their legacy while facing new challenges in the Pokemon world.
Another plot could involve the next - generation Avengers having to prove themselves to the world. The public is skeptical of them at first, thinking they can't live up to their parents' legacies. So they take on a mission to save a major city from a powerful alien invasion, and in the process, they gain the public's trust.
Another plot could revolve around the relationships between the children of the original RWBY characters. For example, if Ruby's daughter has a different view on hunting Grimm compared to her mother. It could lead to internal conflicts within the new team and also show how the world has changed since the first generation's time. There could be political aspects too, like new laws regarding Huntsmen and Huntresses that they have to navigate.
One idea could be that the next generation has to deal with new villains who have combined the powers of the old akumas in unexpected ways. For example, a villain might be able to create multiple illusions like Volpina and also freeze things like Mr. Pigeon did in a more powerful form.
One idea could be exploring the new heroes' struggle to live up to the legacies of the original Young Justice team. They might face challenges like dealing with new villains who are specifically targeting them because of their predecessors. For example, a villain could try to recreate the same threats that the old team faced, but in a more modern and dangerous way.
Well, perhaps in the fanfiction, the next - generation Iron Man has to form an alliance with other young superheroes to stop an alien invasion that is targeting Earth's new technological advancements. This would involve them using their high - tech suits in creative ways and also learning to work as a team. Or, the story could be about the new Iron Man dealing with a malfunction in their suit that has unforeseen consequences, like it starts attracting dangerous energy pulses.
One idea could be the new generation dealing with the pressure of living up to their parents' reputations in the Upper East Side. For example, a character might struggle to balance their own dreams with the expectations set by their Gossip Girl - famous parents.
A cool plot might be that the next - gen Danny Phantom characters face a situation where their powers are being slowly drained. They then have to go on a quest to find the source of this draining and stop it before they become completely powerless. It could involve meeting old enemies of Danny's who have new tricks up their sleeves.
A plot could revolve around a new magical discovery in the wizarding world that the next generation stumbles upon. Maybe it's a long - lost spell or a hidden magical place. This discovery could put them in conflict with the Ministry of Magic, which has its own plans for this new find. The kids would then need to fight for what they believe is right for the magical community as a whole.