Mads Mikkelsen, perhaps best known as the baddie in Casino Royale, is in talks to play the villain in next year's Thor 2. As for who Mikkelsen will be playing, that's still an open question.
Despite the appearance of a certain space titan in an Avengers post-credit sequence, word on the street -- okay, word from Chris "Thor" Hemsworth himself -- is that Thanos won't be Thor 2's main antagonist.
"We need a bigger fish," Hemsworth said, with typical God of Thunder swagger. He says Thanos as a villain would be "too easy."
Meanwhile, Iron Man 3 has picked up Ashley Hamilton as Firepower, a villain who creates a suit to rival Tony Stark's, and later finds himself in the employ of Stark's archnemesis, The Mandarin.
It's not yet clear whether the Mandarin himself will appear in the film, but Variety has confirmed rumors that the plot will borrow elements from Warren Ellis' six-issue Iron Man: Extremis story arc, which involves the spread of a nanotech virus.
Thor 2 hits on November 15, 2013, and Iron Man 3 arrives May 3, 2013.