New recruits from different parts of the world could also be main characters. Maybe a young hero from Africa with the power to control plants, who brings a whole new perspective to the team. They would have to learn how to work with the more established heroes in Young Justice.
The main characters would most likely be the core members of the Young Justice team, like Robin, Superboy, and Miss Martian. They are the central figures in the original Young Justice series, so it's natural for them to be the main characters in this fanfiction as well.
It could be a future version of an existing villain who has somehow gained even more power. For example, a more advanced and menacing version of the Light. They might be the ones causing the future problems that Future Robin is trying to prevent, and their actions in the present are just the start of their grand plan.
The main characters would surely include the son of Wolverine. He would be at the center of the story. Additionally, some of the older and more experienced members of Young Justice could play important roles. Aqualad, for instance, could be a mentor figure to the son of Wolverine, guiding him in how to use his powers for the good of the team. And then there could be villains as well, like the Light members, who would be the antagonists trying to stop the son of Wolverine and the Young Justice team.
It varies a lot. Sometimes it's the core team members like Dick Grayson or Wally West. Other times, it could be less prominent characters getting more focus in the fanfic.
One popular character is Nightwing Jr. He often inherits his father's (Nightwing) acrobatic skills and detective abilities. Another is Superboy Jr. who has all the super strength and some of the attitude of Superboy. Then there's also Miss Martian Jr. who has the telepathic and shape - shifting powers like her mother. These characters are often at the center of many fanfiction stories.
Obviously, the characters with Fiery and Ice powers would be the main focus. For example, if there is a character like Firestorm, he could play a major role. And an Ice - based character like Killer Frost could also be a central figure. Their interactions and how they use their powers in different situations would be interesting to explore.
In this type of fanfiction, Wonder Girl and Robin are the key players. Wonder Girl, also known as Cassie Sandsmark, has a connection to the Greek gods which gives her powers. Robin, being the protege of Batman, has a strong sense of justice and a determination to prove himself. Their relationship can range from being friends and teammates to something more romantic in many fanfictions. They are constantly evolving and facing new challenges in the world of Young Justice, which makes them exciting characters to write about.
In this fanfiction, the young justice team might encounter advanced technology in the future. They could face new villains who have powers based on futuristic concepts. Maybe they'll also meet their future selves and learn important lessons from them.
Vandal Savage could be a great main villain. Since he has a long - standing history in the Young Justice universe, he could be using the chaos of Endgame to his advantage. He might be secretly manipulating events behind the scenes to further his own goals of world domination.
Vandal Savage is also a possibility. He has a long - standing enmity with the heroes. Maybe he has a new plan that involves using the resurrected heroes for his own evil purposes, or he's trying to stop their resurrection because he fears they'll thwart his future plans.