http://www.worldofwarcraft.com/burningcrusade/
This arrives in November/ December this year, practically at our door steps already. The sheer size of this mmo still staggers me it's even got a bigger population than Guildwars and Eve. (w00t)
Anyhoo, I used to be a WoW junkie so I went cold turkey and haven't touched it in a while now. 40 man instance raiding day n nite 24hrs of the day, 7 days of the week ... etc, etc is no way to spend ones time.
Now this expansion might be the thing which brings me back to WoW. (w00t)
I'm hearing nothing but good things about the Burning Crusade expansion, the closed beta is currently running and the class I currently play, the mage is getting a water elemental summon. In WoW politics this is pretty revolutionary, there are a host of other changes but as I'm not in the closed beta I'll keep watching out for new stuff on offer from this expansion.