You can find more info on the MMORPG track at http://www.dc-mmo.org In fact, most of the tracks have their own websites where you can get more details about their guests and events. (The list of tracks on the main D*C website should have links to all of them.)

There are over 50 events this year in the MMO space, not to mention our World of Warcraft party which draws a pretty big crowd, even by Dragon*Con standards.

In fact, 7 WoW Events + events for Age of Conan, Warhammer Online, Lord of the Rings Online, Star Wars: The Old Republic, Champions Online, Fusion Fall, Force of Arms, City of Heroes, Guild Wars, Second Life, Anarchy Online, Star Wars Galaxies, Everyquest, EQ2, The Agency, DC Universe Online, Free Realms, Kingdom of Loathing, Runes of Magic, Fallen Earth, AdventureQuest Worlds, Global Agenda...

MMO Track guests include:
Felicia Day
CKKnight (you know... the WoW Addons guy? (and Warhammer Online... and...))
Richard Knaak and Keith R.A. DeCandido (WoW lore novelists)
Timothy Zahn (Yes, he writes MMO's too)
Aaron de Orive (Star Wars: The Old Republic, SWG, AO, and others)

6 Parties, a trivia contest, a Horde vs. Alliance Blood Drive...

But more to your original point... Part of the reason "Dragon*Con has always been an odd one for online games" is that we weren't a track until last year.