Lightly disagree. Say what you will, I think Cap in his Nomad rig is important enough to the story that his figure needed to come out when it did.
As for IM, I agree I'd like to see the wing version, but just from the trailer alone there's also a "rocket-feet" version, an "unmasked" version, a "half-suit" version, and a "battle-damaged" version I'd also like to see in plastic. I guess the big problem with this being an all-encompassing "Adult Collector" line as opposed to a dedicated kiddie line is that for every character there's gonna be at least one "look" we won't get.
I'm also 88% sure we'll be seeing Ebony Maw and Corvous Glaive.