I am looking forward to this tremendously... I think every movie Marvel Universe flick has been exceptional - outside of maybe The Incredible Hulk and IM 2, which were average-slightly above average.
But, as one poster mentioned above, this trailer looks a little lackluster... and maybe a bit too much like IM3.
I like what I've seen from Joss Whedon... so I am very optimistic about things.
I hope we see a Skrull soon!