It's mostly the footage from Comic-Con with the more spoilery stuff taken out and VASTLY improved FX and color-correction, but I'm definitely feelin' it:
The absolute best thing of it, as far as I'm concerned, is that Mjolnir (the hammer) comes off both very plausible and very badass as a weapon - it can't be easy to make what's basically a "boomerang hammer" work in live-action, but Brannagh etc seem to be pulling it off. I'm psyched to see how it plays to a theater.
Well played, Marvel. Now bring on Cap!