Since we saw a tease at the end of The Avengers, its unclear if it was a tease or not. Guardians of the Galaxy has a couple of characters with ties to the villian. He could just show up in the credits again but fans are betting that he might be the main villian in GotG and might team up with Red Skull who we seen in the trailer of The Avengers 2 get sucked into deep space.
