Jaimie Alexander was recently interviewed by Beyond the Trailer, and she was asked if there were any plans for her character after THOR: THE DARK WORLD. Her response?
"Oh yes. But I can't tell you why. But yes, you will."
Now, Alexander could be talking about starring in another Thor film, but the way she looks at the camera (see below) as she answers the question and how confident she is about plans for her character makes me think it could be something bigger or different. Maybe not a spin-off solo movie, but perhaps Thor and Loki won't be the only Asgardians appearing in other Marvel movies. With how big of a cinematic universe Marvel is creating, it only makes sense that some of these supporting characters could start showing up in other films. It'll be interesting to see if any of the events in the new movie hint towards what plans Marvel might have for her character.
THOR: THE DARK WORLD starring Chris Hemsworth, Tom Hiddleston, Natalie Portman, Christopher Eccleston, Anthony Hopkins, Stellan Skarsgard, Ray Stevenson, Zachary Levi, Rene Russo, and Kat Dennings will be released on November 8th, 2013.