Marvel held a Next Big Thing conference call today with writer Rick Remender and editor Tom Brevoort where it was revealed that new members would be joining the Uncanny Avengers.
Wasp, Wonder Man and Sunfire are new additions as seen on the John Cassaday cover to Uncanny Avengers #5.
The new team will debut in #5 with artist Olivier Coipel coming on board for the issue as Cassaday catches up with the rest of the series.
During the call Remender offered some info on each of the characters (via CBR):
...there will be a natural reason for Sunfire to join, though he will have some "business" with Wolverine. "I don't think there's any character I can write that's as surly as Sunfire...and he's a classic X-Man. He's one of the guys Charles Xavier wanted on the squad in 'Giant-Size' and #94."
Wonder Man would be more of a pacifist this time out and will serve as the publicist for the team with his Hollywood experience, and the Wasp will be the heroine who funds the team as these Avengers will live in the Avengers Mansion and take no government funding for their activities. "Beyond that, Wasp has a few interesting things she'll be doing as well to help the mutants reputation...not all of that will go well."
There was no mention of the delays surrounding the series.