The article about the product placement position at Blizzard got me thinking: if anyone could make an MMO that mixes online gameplay and social environments with real-world business, it would probably be Blizzard. Blizzard has experience with crafting Skinner Box reward systems to keep players interested and managing huge social environments to support social interactions.
WoW players will also note that Blizzard is very savvy at making profitable but non-intrusive marketing schemes, such as the WoW trading card game, pet shop, collector's editions, and Blizzcon bonuses. The market also seems ripe for a strong name-brand to come in and break new ground, since the main competitors (Second Life, Playstation Home, etc.) aren't changing enough to draw new users.
So now I'm curious: how many of you would you play such an MMO?