Aeolius
Adventurer
I'm not certain what my reaction would be, to "Expedition to Castle Greyhawk", as my campaigns rarely center around urban adventures. A revised LGG would be more than appreciated, however, even if LG uses their one page in the back. 
So, will the "new" GH incorporate psionics, incarnum, warlocks, and Tome of Magic?

So, will the "new" GH incorporate psionics, incarnum, warlocks, and Tome of Magic?