Besides the fact that they are trying for a "next generation MMO" with "revolutionary" changes and [insert other hype buzzwords everyone else uses], and the statement that it will "not be based on any previously existing Blizzard universe", they really haven't said anything. Oh, and some of the WoW staff like game and content designers have been pulled full-time into this project now.

I figure they are due out in the next several months with another media teaser that builds more interest but at the same time tells us practically nothing about the project.