So, Marvel has announced that all four Avengers titles (New, Mighty, Dark and Initiative) are ending at the end of Siege but have already announced some of the plans to bring them back.
Presumably the core title, Avengers will be written by long-time Avengers scribe Brian Michael Bendis and drawn by John Romita Jr. I can only guess that there will be a few more additions to the team but the five members we have now are Bucky Cap, Iron Man, Thor, Hawkeye and Spider-Woman. Not much else said, however, since Siege is only half way through.
The second book (and obviously the most secret) is the Secret Avengers. Mostly all that we know is the Ed Brubaker will be writing and Mike Deodato will be drawing.
Those two name, though, are all it took for me to get a complete NB over the Avengers. Count me in for both.