Update: It's official - the cover is legitimate. Look for more details soon.
It seems like you can't keep a good hero down - even if you're their publisher.
For the past two days, Marvel has been slowly pulling back the curtain - and in this case the black fill - on the cast for the All-New All-Different Avengers title to debut May 2 on Free Comic Book Day. The initial release showed Ms. Marvel and the female Thor, while the subsequent day's release added Nova and the Vision. Now, seemingly early - unless Marvel is doing some disruptive marketing of their own - the full All-New All-Different Avengers cover by Jerome Opena has showed up on 4chan, revealing both the full team and the creators
If this cover is legitimate, it would appear that Mark Waid, Mahmud Asrar and Laura Martin are the creative team on this All-New All-Different Avengers team, and front and center is none other than Miles Morales, Ultimate Spider-Man. There's no word if the "Ultimate" moniker will follow him here, but he leads a team which also includes the newly revealed All-New Captain America and a Iron Man. Earlier speculation by Newsarama had it pegged as being Iron Woman, but the look of this design is different than the Iron Woman costume revealed prior by Marvel.
Newsarama asked Marvel to confirm the veracity of the cover Thursday morning, but the publisher declined to comment. Mark Waid has not made a public comment about the reveal, but Mahmud Asrar has confirmed the artwork on Twitter and Facebook.