Blizzard has posted a few interesting tidbits on Twitter yesterday and today. The tweets are quoted below; Blizzard in blue, the fan replies and questions responded to in white, plus some wiki links for more info in orange:
Zombies can be a touchy subject.—Kenny McBride
They are indeed serious business.—Diablo
Report from Metzen: ?Digging the vibe.? Good. —Diablo
What is the maximum amount of players you can have in a single session of diablo 3 multiplayer? The most I’ve seen so far is 4.—TeslaFalcon
Right now we’re playing with four in co-op. That’s not necessarily set in stone, but it’s looking like a solid number.—Diablo
Explorations of animal themed armors are promising.—Diablo
Note the reference specifically to, “in co-op” for the multiplayer reply. Since the cap may be higher than 4 in other forms of multiplayer, such as PvP?