Why hello Nyarlathotep, I didn't see you there, wibble wibble.
As for what it will be when it grows up, your guess is as good as anyone's, but BioWare clearly has something fun on the way. You've Been Chosen, the Nightmare teaser beckons, but chosen for what? Some fantastic, dream-like imagery, by the look of it; here's hoping that nice fellow in the sharp suit isn't going to do anything too damning to your precious Sanity.
A quick trip over to the website reveals a few cryptic notes. "The time is near. They are watching. Your power is rising. Cologne, Germany. You've Been Chosen." Presumably the Cologne reference has to do with Gamescom, so we should be finding out more in August.
Wish I could be there! I've always liked German beer, though if it's going to become the stuff of nightmares, perhaps it's best to keep a distance. In the meantime enjoy the teaser, and try to avoid Their unsettling gaze ...