Iron Man: After credits clip

If you guys missed the after credits, here it is.

Samuel L. Jackson makes an appearance as Nick Fury and talks about the Avenger initiative. It looks like a possible sequel. I wonder if The Mandarin will make an appearance. Of course, not forgetting, War Machine. I'd like to see how his suit would turn out. I guess another long wait Iron Man fans!

Anyway, anyone knows what is the Avenger initiative?