I don't know about you guys, but I've been wondering about how Guardians of the Galaxy will tie into the Marvel Cinematic Universe.

It seems obvious that Thanos would appear in it, and it could possibly give us a taste of the Infinity Gauntlet's power (similar to how Captain America: The First Avenger showed us the Tesseract), but besides that, would else could happen?

I think its worth asking for ideas, given to how little information has been revealed so far.