Since it involves Thanos, then I want to see Captain Marvel (Mar-Vell) and Adam Warlock, for sure.

Ms. Marvel

I originally thought Black Panther, but he might be a little time consuming to work in. Then I saw Luke Cage and figured PERFECT...but they already have two big strong guys, so I think I gotta go with Ms Marvel. Team DOES need another woman, and a woman with powers. Or possibly Wasp.

With the reveal of Thanos, I would suspect they would need more heavy hitters, either of the physical or the mystical side of Marvel, so Strange, Adam, and Wanda would work very well for that angle.

Along with Pym to help jumpstart the next arc with Ultron.

The more I think about it, the more I want a Ms. Marvel movie. That way we get Carol, Mar-Vell, and hopefully Abigail Brand and SWORD. It'd tie into the Guaridans of the Galaxy movie, as well as Thanos. Or, maybe in a few movies, it could set up the Kree/Skrull War or a Secret Invasion-type story.

out of almost 100 votes and noone wants to see spider-woman lol

Black Panther and then Ms. Marvel. I like the idea of Luke Cage (Iron Fist should be in too if Cage is), Ant-Man, Wasp, Dr. Strange, and Scarlet Witch and Quicksilver (a lot of Flash fans would be very upset that he got to the screen first haha). Quicksilver getting in the movies could actually help them to try do something with his character in the comics, so that might be cool.

EDIT: How could I forget Vision?! Haha.

Black Panther or Ms. Marvel, since I feel the team could use an non-white member and another female. Although I doubt the movies will expand the team too much. I was surprised they managed to fit so much character development into one movie. I think the films can handle one, maybe two more, and that'd be it.

What do people have against Scarlet Witch?

The Pyms and Panther are most likely to make the sequel