One idea could be exploring the family dynamics within the Avengers during the Infinity War. For example, how do the different characters who have a sort of family bond, like Tony Stark and Peter Parker, deal with the chaos of the war? Another could be a fanfiction where a superfamily from a different dimension arrives to help in the Infinity War and how they interact with the existing heroes.
Well, a plot could revolve around a superfamily that has a special power to reverse the effects of the Infinity Stones. They come to Earth during the war, but they are initially distrusted by the Avengers. As the story progresses, they have to prove their worth and work together to stop Thanos. This would add an interesting layer of new characters and powers to the already complex Infinity War story.
Perhaps a fanfiction where a superfamily of mutants gets involved in the Infinity War. They have unique abilities that could either complement or clash with the powers of the Avengers. Maybe they have a different approach to fighting Thanos, like focusing on protecting civilians first rather than directly engaging in battle with Thanos's forces. This could lead to some interesting conflicts and reconciliations within the story.
One idea could be a secret alliance within the superfamily. For example, two members who seem to be on opposite sides during the civil war are actually working together to expose a greater threat that has been fueling the conflict. This would add an element of mystery and change the dynamics of the war.
One idea could be to have the cartoon versions of the heroes and villains swap powers. For example, Iron Man could end up with Thor's lightning powers and Loki could have access to Captain America's super - soldier strength. This would lead to really unique battles and character development as they struggle to control new abilities.
Well, a plot idea could be that the Infinity Stones have some sort of connection to the Kingdom Hearts universe. Maybe they are fragments of Kingdom Hearts itself. So, the characters from Kingdom Hearts have to race against the Avengers to either protect or claim the stones. Also, some of the Disney characters from the Kingdom Hearts world could get involved. For example, Mickey Mouse could use his magic to help in the fight against Thanos and his forces.
One idea could be a pre - Infinity War story where the Guardians try to steal an Infinity Stone from a powerful and unexpected enemy. Maybe a new race that has been secretly collecting powerful artifacts.
Perhaps in the fanfiction, the Infinity War concept causes some members of the Justice League to turn on each other. Maybe the power of the Infinity Stones - like objects corrupts some of them, like if Flash gets too tempted by the power of speed - enhancing stones and starts causing chaos instead of helping. Then the rest of the team has to figure out how to stop their former ally and also the external threats.
One idea could be Peter trying to convince Tony to use a more risky but potentially game - changing strategy during the battle in Infinity War. For example, he might suggest using his new - found powers in a way that Tony is initially hesitant about.
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 how the remaining heroes deal with the loss of half the population on a personal level. For example, Iron Man could struggle with survivor's guilt and pour all his energy into finding a way to reverse it. Another could be about the new friendships formed among the survivors as they realize they have to rely on each other more than ever.
One idea could be a crossover with the Harry Potter universe. The Avengers could travel to Hogwarts in search of a magical relic that could help them in the fight against Thanos. Maybe Doctor Strange uses his magic to open a portal to Hogwarts and they team up with the wizards to defend the relic from Thanos' minions.
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.