PS3 and Xbox 360 versions have pleased Blizzard.
Will make its public debut at BlizzCon 2013.
'Dark expansion' introduces Death and a new character class.
Blizzard opens mysterious new Diablo 3 site.
Kotick and partner stump up $100 million of their own money.
Doesn't sound likely to be the title of a new game from the makers of WoW, StarCraft and Diablo.
PS4 date still to be announced.
Also limited availability of tickets to an exclusive dinner.
Trading between players will, however, be possible in online and offline modes.
In development for PS3, with plans to adapt the action RPG for PS4.