Source: comicvine.gamespot.com

8. Evolutionary War

That purple glove is probably a clue about a certain time-hopping villain we'll talk about later, but it could also be a tip of the hand toward the High Evolutionary, a super-genius geneticist who wants to hyper-evolve all of humanity into the future.

He decides to do this by dispatching teams to find the Marvel Universe’s power sources, and then steal or eliminate them. The goal is to steal the Terrigen Mists and master the Savage Land.

His other aim is to sterilize the Mole People, which seems horrific. Also, the Marvel Universe has Mole People. And they’re a little weird.

High Evolutionary would be a fun villain for the MCU to play with if they want a new big bad once Thanos becomes space dust. Plus, if they suddenly decide to introduce mutants, they could use High Evolutionary's experiments to easily sneak that through.