A really interesting plot could be the emergence of new villains who see the weakened state of the superhero community after the World War Hulk as an opportunity to strike. They could be stealing technology left behind from the war to power their own evil schemes.
One idea could be exploring the rebuilding efforts on Earth. Show how different cities are being reconstructed and the role of various superheroes in it. For example, Iron Man could be using his tech to rebuild Stark Tower.
Well, you could also have a plot where the secrets that were buried during the civil war start to surface in the aftermath. Maybe there were hidden alliances or betrayals that now come to light and create new tensions. It could involve characters having to deal with the truth about their past actions or the actions of their loved ones.
The Hulk could still be the main character as we follow his journey of redemption. He might be trying to regain the trust of the people and his fellow heroes.
Maybe in the fanfic, Hulk has a different view on the registration act. He could see it as a form of control, like how he was always being hunted. So he sides with the anti - registration side, but not without some internal struggle. After all, he doesn't fully trust any of the heroes at first. He might end up teaching them a lesson about freedom and acceptance.
A plot could revolve around a scientific experiment gone wrong that affects only them. They start to lose control of their powers in different ways. Hulk might become too calm and lose his rage - fueled strength, while She - Hulk might turn into her human form at the wrong times. They have to work together to reverse the effects of the experiment, all while dealing with the problems that come with their power - changing states.
One idea could be that they team up to face a new super - villain who is immune to normal Hulk - like strength. So, they have to combine their smarts and unique Hulk - related abilities in a new way. Another could be a story where they explore their family connection in a more in - depth way, like dealing with the implications of being related Hulks in a world that still doesn't fully understand them.
One idea could be that the reborn character has to deal with the Hulk's uncontrollable rage in a new way. Maybe they have some special ability from their rebirth that can calm the Hulk down. For example, they can communicate with the Hulk on a deeper level, like understanding his fears that fuel the rage. Another plot idea is that the reborn character uses the Hulk's strength to protect a world that is different from the original Hulk's universe. They might face new enemies and challenges that require both the Hulk's brute force and the character's unique knowledge from their past life.
Another plot could be that Tony creates a device that can transfer intelligence. He accidentally transfers some of his own intelligence into Hulk. This causes Hulk to become more intelligent and he starts to question his own existence and role in the world. Together, they embark on a journey to find a way to reverse the process while also learning a great deal about each other.
Well, a great plot for a Kingdom Hearts 3 Aftermath fanfiction could involve the relationships between the different characters. Like, how Riku and Kairi's friendship might have evolved. Also, since Xehanort was defeated, there could be a power vacuum. Some villains might try to take advantage of it, and the heroes have to stop them before a new, greater evil rises. It could also show the daily lives of the characters in a more peaceful time, with little hints of the past adventures.
One idea could be that the Hulk somehow gets transported to the wizarding world. He might be initially seen as a dangerous creature, but then the Hogwarts students discover his good side and he helps them fight against a new dark wizard. For example, his super strength could be used to break through dark magic barriers.
One idea could be that She - Hulk and Daredevil team up to take on a powerful new villain in Hell's Kitchen. This villain could have some sort of ability that makes them difficult to detect, which plays to Daredevil's radar - sense and She - Hulk's brute strength.