I know what it won't be.
Medieval MMO, Medieval RTS, Sci-fi RTS, 3rd Person Medieval Hack n Slash, World War 2 game.
Things it could be: Sci-Fi FPS MMO(Think Huxley), as someone else said a massively social Sims type MMO that incorporates social media, a Sci Fi MMO like WoW in nature.
I know they will be designing the game around a financial model so it will be online, monthly payments, more accessible material and story, lower learning curve.
---------- Post added 2010-10-07 at 10:52 PM ----------
Wish there was a Wing Commander or Privateer MMO. /sadpanda