So after the first trailer was released today:
With Alan Taylor directing and Christopher Eccleston playing as the villain, this will be fucking amazing in my opinion.
Seems like Marvel are trying to become more dark, like Nolan's adaption of the Batman trilogy.
The idea of the film is that the Dark Elves of Svartalfheim attack Earth (London representing) and Malekith the Cursed (Christopher Eccleston) is leading them to conquering the Earth. They kidnap Jane (Natalie Portman) and Thor has to save her and he calls upon Loki to do this and save the Earth.