The ones I picked up last night
Movie Series:
Mark III, IV, V, both VI's
War Machine (red variant, I read a post on the two colors, but they were all red at my walmart.)

Comic Series:
First Appearance
War Machine (we had only one of these, lucky me!)
Stealth Armor
Crimson Dynamo
Classic

Concept:
Power Assault
Hyper velocity Armor
Inferno Mission

Next time I work I hope they have already put out more, if not I am going to get in the stock room and look for more to put out. I will keep checking everyday that I work.

@Morzilla
I wouldn't mind helping out with getting some figures for you if you are still having trouble finding them.