Another plot could focus on the relationship between Thanos and his adopted daughters in a more in - depth way in the context of the Infinity Wars. Maybe there was a time when they were planning a rebellion against him before he even started his quest for the Stones. This could add a whole new layer of backstory and drama to the events of the movie.
A really interesting plot could be based on the idea of time travel within the context of 'The Avengers Infinity Wars' fanfiction. What if the Avengers found a way to go back in time and change certain events that led to Thanos getting the Infinity Stones? They could try to prevent the destruction of Xandar where the Power Stone was first retrieved, or stop Loki from stealing the Tesseract on Earth, which was a crucial step in Thanos' plan.
One idea could be exploring the backstories of the minor characters in more depth. For example, showing how the Wakandan warriors trained and what their lives were like before the big battle. Another could be a what - if scenario where Thanos actually had a change of heart at the last minute. Maybe he saw the beauty in the universe he was about to destroy and decided to stop.
One idea could be exploring what if a minor character from the movie got the Infinity Stones instead. For example, a random Asgardian warrior. They might use the power in a completely different way, perhaps trying to restore Asgard rather than the more universal aims Thanos had.
One idea could be exploring what would happen if a minor character from the movie got the Infinity Stones instead of Thanos. For example, a Wakandan scientist. They might use the stones for completely different purposes like enhancing the technology of Wakanda even further, which could have a huge impact on the entire universe in the fan fiction.
One idea could be the remaining Avengers finding a way to reverse the Snap in a completely unexpected way, like traveling to a different dimension where Thanos never got the Stones. Another could be the rise of new heroes among the survivors, who have unique powers that can help in the fight against Thanos' legacy. And perhaps some of the snapped heroes are actually alive in a sort of pocket universe and the Avengers have to figure out how to bring them back from there.
One idea could be exploring what if Loki had an unexpected ally within the Avengers. Maybe a character who was initially on the heroes' side but got swayed by Loki's charm or promises.
One idea could be exploring the psychological impact on the heroes during the Infinity Crisis. For example, how Superman copes with the overwhelming threat and the potential loss of his loved ones. Another could be a story from the perspective of a lesser - known hero who rises to the occasion during the crisis. Maybe they discover a new power or ability that helps turn the tide.
One idea could be that in the fanfiction, instead of Thanos getting all the Infinity Stones, the Avengers manage to steal some of them first. They could then use the power of the stones they have to create alternate versions of themselves to fight on different fronts against Thanos' forces.
One plot idea could be that the Inhumans' city of Attilan is in danger and the Avengers are called in to help. The Inhumans are initially hesitant to accept their aid due to their differences, but they soon realize they need to work together. Another idea is a young Inhuman with a powerful but uncontrollable ability is found by the Avengers. They try to help the Inhuman learn to control it while also protecting them from those who would use their power for evil.
The Avengers Infinity Wars is about Thanos' quest to collect all six Infinity Stones. He believes that by wiping out half of all life in the universe, he can bring balance. The Avengers and their allies try to stop him. There are many battles across different planets. In the end, Thanos manages to get all the stones and snaps his fingers, which causes many beloved characters to turn to dust.