Maybe in the fanfiction, the reverse time heist goes wrong in a different way. Instead of getting the stones, they end up changing key events in the past that have unforeseen consequences in the present. For example, they prevent the birth of one of their own members, and then have to figure out how to fix it while still dealing with Thanos. It would be a complex and interesting storyline.
Well, in some fanfictions, Tony and Steve's relationship could be completely different during the reverse time heist. Maybe they start to understand each other better as they work together in the past. They could see the reasons behind each other's actions in a new light.
One idea could be exploring the different Avengers' reactions in more detail as they go back in time. For example, Tony Stark might have some internal conflicts about seeing his younger self and the technology of the past. Another plot idea could be the unexpected encounters with characters during the time heist that weren't in the movie. Maybe they run into some alternate versions of villains that change the course of the heist.
When it comes to Steve Rogers, the time heist could be used to further explore his longing for the past. In the movie, he goes back to be with Peggy. But in the fanfic, it could show his internal struggle about leaving his present friends. It could also show his joy and sadness as he revisits key moments in his past, and how he ultimately makes the decision to stay or go back in time more comprehensively.
In a fanfiction based on Avengers Endgame and diapers, there could be a situation where Hulk, who has now merged his personalities more, finds a baby Hulk - like creature. He has to handle the little one, including all the diaper - related tasks. This could be a really funny and heartwarming story. Also, Black Widow could be brought back in a way where she has to take care of a baby that is crucial to the future of the universe. Diapers would be a part of this new adventure for her, as she tries to protect the baby from those who would do it harm.
One more plot idea is that a new villain targets Wanda specifically because of her relationship with Vision. This villain could try to manipulate or break their relationship, leading to a story full of drama, action, and the exploration of their love and commitment to each other.
A creative plot could be where the Black Order switches sides and helps the Avengers against an even greater threat. This would turn the typical dynamic on its head. The Avengers would have to trust their former enemies, and the Black Order would have to prove themselves.
One plot could be that an evil sorcerer turns the Avengers into cats as part of a plan to take over the world. The Avengers, in their cat forms, have to find a way to reverse the spell while still using their unique skills. For example, Iron Man (as a cat) might use his high - tech gadgets which he has miniaturized to fit his cat body. Another plot could be that they are turned into cats during a mission gone wrong at a magic - based research facility. And then they must navigate the city in their new forms, trying not to get caught by animal control while also trying to communicate with their non - cat allies.
Sure, there are. They expand on the events and characters from the movie, offering additional depth and perspectives.
The Avengers' reactions to Endgame fanfiction would vary greatly. Natasha Romanoff might be intrigued by the different relationships and storylines presented in the fanfiction. Bruce Banner would probably approach it from a scientific and analytical perspective, trying to understand the logic (or lack thereof) in the fictional scenarios. Clint Barton might be more focused on how his character is depicted, especially in relation to his family.
Another fanfiction idea could be a prequel to her role in Avengers: Endgame. It could show what she was doing in the cosmos just before she received the call to return to Earth. Maybe she was facing a different threat that was related to Thanos in some way, and this backstory could add more depth to her character in the movie.