They aren't showing anything yet.
Right now it's just Carmack's Keynote. He did, however, mention their work on Rage2

If anyone will mention Rage DLC, it will be Tim Willits, unless he's hiding in shame, lol, then it might be Matt Hooper.
Edit: I must say the level of idiocy in the QuakeCon IRC is ridiculous, gonna go stream somewhere else, where I don't have to have text pop in my screen, text from monkeys with a 10 second attention span.
The keep screaming for games, morons can't tell it's a damn Keynote.