Two Members Confirmed (ish).

So, at the very least we know that Captain America is going to be in the new Avengers series, which will be written by Brian Michael Bendis and drawn by John Romita Jr. Also of interest is this post by Romita Jr. saying that Spidey was involved in the new monthly he was starting up, so I think it's safe to say that we now know at least two members of the new Avengers status quo.

Cool.