In this type of fanfic, the Infinity Stones could have a very different effect in the Harry Potter universe. For example, the Time Stone could be used to reverse dark spells or resurrect fallen wizards. However, the Stones' power might also be limited by the magic rules of the wizarding world. The fanfic could delve into how the characters from both universes adapt to the presence of the Stones and how they use or misuse their power.
Definitely. The Infinity Gauntlet comics came out earlier and laid the foundation for the concepts and characters seen in Infinity War. There are some differences, but the comics serve as a precursor.
Avengers Infinity War is largely based on the Infinity Gauntlet comic. Many key elements and plot points are drawn from it, but there are also some creative adaptations and additions to make it work for the cinematic universe.
The new villains in 'Avengers After Infinity War Fanfiction' could include a group of super - powered individuals who were once under Thanos' control but now have their own agenda. They might have powers that are a combination of the Infinity Stone's energy and their own genetic mutations. They could be led by a charismatic figure who has a vision of a new world order, one that is not friendly to the Avengers or the people of Earth. Additionally, there could be a cosmic entity that was awakened by the events of Infinity War and sees Earth as a threat to the balance of the universe.