If you've read the first issue of UNCANNY AVENGERS, you know we already have quite the roster. The roster currently consists of Havok, Captain America, Wolverine, Rogue, Thor and Scarlet Witch. It was a little odd that Cap asked Havok to lead this squad despite other leaders such as himself, Wolverine and Rogue being on the team. We also saw some conflict between Rogue and Scarlet Witch.
To make things more complicated, it's been announced that in issue #5, Rick Remender will be adding three more characters to the roster.
Wasp, Wonder Man and Sunfire are coming to the team. We've already seen that apparently Wonder Man has been forgiven for his action against the team in the pages of THE AVENGERS.
It was mentioned that Wolverine and Sunfire have some "business" to resolve. Wonder Man will be a pacifist and P.R. guy for the team. Perhaps we'll see the return of his feelings for Scarlet Witch? Wasp will provide funding for the team so they don't have to rely on "government mandates."
It was also announced that Olivier Coipel will be filling in for John Cassaday on the issue. This all sounds pretty interesting.