One idea could be exploring the backstories of the Eternals in more depth. For example, how they first arrived on Earth and their initial reactions to this new planet. Another could be a love story between two Eternals that was previously untold, perhaps a forbidden love due to some ancient Eternal law. A third idea is to create a story where the Eternals have to team up with modern superheroes to face a new, greater threat that neither could handle alone.
In 'the eternals fanfiction', a great plot could be about the Eternals discovering a hidden civilization on Earth that has been secretly observing them all this time. This new group could have technology or powers that the Eternals don't understand. Another plot idea is to show what would happen if the Eternals' memories were wiped and they had to start anew, slowly remembering bits and pieces of their past. And a third option could be a story where an Eternal creates a new form of art or culture on Earth that spreads and has a profound impact on human society.
A cool Eternals fanfiction could center around the powers of the Eternals. Imagine a story where Druig uses his mind - control powers in a more complex and morally ambiguous way. Maybe he tries to control a powerful human leader to bring about world peace but faces opposition from the other Eternals. Also, a fanfiction about the Eternals adapting to modern - day Earth after being away for so long would be interesting. They would have to deal with new technologies and cultural changes.
One idea could be that the Eternals' powers are needed to defeat a new, extremely powerful villain that the Avengers alone can't handle. For example, a cosmic entity that can manipulate time and space. The Eternals' long - lived knowledge and unique abilities would be crucial in formulating a battle plan.
Well, perhaps in the fanfiction, there could be a cultural exchange of sorts. The Eternals could introduce the Avengers to their long - lived and different ways of life. This might lead to some interesting character development, like Thor learning new forms of combat from an Eternal warrior. Also, the discovery of a hidden connection between the two groups, such as a shared ancestry in some ancient, forgotten time, could be a great plot point.
One idea could be a battle where the Eternals and Avengers are initially at odds due to a misunderstanding. Maybe they both think the other group is causing some strange cosmic events. Eventually, they figure out it's a third party and team up.
You could write a fanfiction where some of the Eternals get separated from the group and have to survive on their own in a hostile part of the world. They would have to use their powers in new and creative ways to stay alive and find their way back to the others. This would show their individual strengths and weaknesses more clearly.
You could write a fanfic about an alternate universe where the Eternals have different powers. Maybe instead of Thena being a fierce warrior, she has the power to manipulate time. This would change the dynamics of their battles and how they interact with each other. Or a fanfic that shows what would happen if the Eternals were to lose their memories and have to rediscover who they are and their purpose. They would have to rely on their instincts and the few clues they could find about their past.
One interesting concept could be the merging of different Eternal characters' powers in unexpected ways. For example, if Ikaris and Sersi's powers were combined in a fanfiction scenario, it might create a whole new kind of energy - based ability. Another concept could be crossovers with other fictional universes, like the Eternals meeting characters from the Marvel's Asgardian realm.
One idea could be exploring the unspoken stories of the ranch hands. Maybe there's a hidden love affair between two of them that has to be kept secret due to the social norms of 1923. Another could be focusing on how a young character dreams of leaving the ranch and going to the big city, but faces many obstacles. And a third idea could be a mystery plot where strange things start happening on the ranch and the characters have to figure out what's going on.
One idea could be Android 21's struggle to fit into a world that fears her. She has to prove that she's not a threat and tries to make friends. Another could be her discovery of new powers and how she uses them for good. Maybe she teams up with other characters to fight a common enemy.
One idea could be Vampirina making new friends in the human world who are initially scared but then come to understand her. For example, she could join a school club and have to prove that she's not a threat.