I completely disagree on the Falcon becoming the new Capt America. The Cap was an enhanced human and Falcon is not, It should have been Bucky since he is enhanced.
Both were Captain America at different times in the comics.
I'm down for both of these films. I'm assuming Cap 4 will be first because...
RED HULK! Finally
And, yes, I'm assuming he'll be a part of Thunderbolts even though he hasn't appeared in the trailers yet because he was part of them in the comics and, after all, they're named after him (and he was the leader of the group).