Whether it's a new Elder Scrolls game, or something Fallout related (or even something entirely new), Bethesda are working on something, although they're still keeping their cards close to their chests. Bethesda's Todd Howard did, however, say the following to PCgames.de at a recent event in Germany:
"We're working on something, have been for a while, and it's going to be a little while before we talk about it. We want to surprise everybody and make that moment where we talk about it special for everybody. And we're still tinkering... but you know we're really excited about it. The stuff we're able to do now on the PCs and the next-gen systems with all that memory, we're very, very excited about the opportunities."
Maybe we'll know more about what the studio are working on at this year's E3. Only time will tell.