The latest TES game has started the countdown. Launch down for next year. I'm not sure (and neither is anyone else) if that way of rendering 6 is a clue. But it looks like it has dragons...
Site seems to be taking a bit of beating though - can't think why! I gather it will be a new engine, not the old Oblivion/Fallout3 one.
Edit: title change to the correct name for the game!