According to Hero Complex:

"Don’t expect the Avengers to reassemble in Hall H at Comic-Con International in July.

The official word from Marvel Studios is that their team will sit out the Hollywood previews in the 6,000-seat hall, where fans, bloggers and journalists from around the world come to see filmmakers and stars introduce and promote their ( Read more... )

( Read more... )

This is pretty much the same stuff that was posted in tonypepper, which is why I'm not potsting it there. But this article at least has some direct quotes. It's still not official confirmation, but things are looking up!!

Full article this way