Marvel comics property Thor is under development.

Some Thor Rumours

How exactly does Marvel's God of Thunder Thor come to earth in preparation for The Avengers? IESB.net might have the answer. The site says:

A reliable source tells the IESB that the character of Donald Blake has been added to the end of the script. Let me reiterate that he wasn't there before, the script was set entirely in the land of the Norse Gods.

The introduction of the character is essential to how Marvel will tie Thor into the Avengers that is set in contemporary Tony Stark/Hulk timeframe. It explains how the actual Thor film will be set in the ancient time of the Norse Gods and how they will subsequently bring the character into a modern time with Donald Blake discovering the magical Norse hammer Mjolnir and turning into Thor.

The site adds that Thor director Kenneth Branagh will have an acting part in the film as well.

Thor is coming to theaters on July 16, 2010 and The Avengers a year later on July 15, 2011.

Marvel really is getting all into this realism/tying things together with The Avengers, which I'm glad to see. I like when things fit together, as long as they keep things tied together and faithful. That may already fail depending on how they do the Hulk in the movie, but that's not here nor there. As for Thor, tying it in is going to be tough, but it'll be an interesting concept, bringing Thor into the present. Hopefully it doesn't feel tacked on since they're just adding it now, but with Marvel's current direction, I don't think it will have that feel. But let's see how it all turns out in the end, shall we?

GEORGE KIRK AS THOR VS. BRITISH LOKI.Making an impression at James T. Kirk's father in STAR TREK, Aussieactor Chris Hemsworth is now Thor, according to Nikke Finke. Inaddition, she reports that British actor Tom Hiddleston (THE GATHERINGSTORM) has been cast to play Thor nemesis Loki. The Marvel feature isset for release on May 20, 2011. Kenneth Branagh is directing the filmabout the Norse god of thunder.