There's a rumor, apparently confirmed, that Irrational may be working on a new X-com game. Further rumors indicate the Firaxis is also developing an X-com game, perhaps Firaxis a real sequel and Irrational an FPS spin off.
http://www.gamespot.com/news/6238162.html
EDIT: Oops, I put it in the wrong forum somehow. Could a mod please move it?
Something to be excited about for sure. I'd like to see how these rumors pan out.