Fans of Marvel superheroes have a big year ahead of them. In addition to the third Iron Man movie coming this summer, Chris Hemsworth will also be returning as Thor in Thor: The Dark World this November.

Marvel Studios today released an early trailer for the movie that teases new villains and more politics in Asgard. The trailer shows that Natalie Portman will be reprising her role as Jane Foster, and the very end of the trailer teases that Thor may have to make an alliance with Avengers villain Loki, played by Tom Hiddleston. It also shows at bit of the new enemies Thor will be facing: the Dark Elves of Svartalfheim, led by Christopher Eccleston’s Malekith.