Future villains for sequels

I don't see a thread for this, but thought it be cool to discuss who else could show up down the road. I am going to list first who hasn't showed up.



Mutant villains

Mr. Sinister

The Marauders (I suppose they could show up as a new group with Mystique in charge)

Omega Red

Avalanche (of all the Brotherhood villains he is the most prominent one we haven't seen)



Human villains

The Friends of Humanity

Graydon Creed

The Purifiers

Stephen Lang

Cameron Hodge



Aliens

Shi'ar:

Emperor D'Ken

Deathbird

The Phalanx (of course they don't have to be aliens could just be the virus that Cameron Hodge created)



Other

Mastermold

Bastion

Nimrod

Arcade

Mojo



Any other thoughts or others I missed



I personally could see a good movie around Bastion and maybe Mastermold mixed in, could be a different approach to the sentinels. The Phalanx would work as villains, although they do resemble the Borg. Not sure about the alien stuff.