Diablo 3 will probably never be made ever since the team left Blizzard. However, they've all formed their own company named Flagship Studios (http://www.flagshipstudios.com/) and are working on a game with Namco as a publishing partner.In an interview they said it will be another action RPG that will be Diablo-like but very different. I'm sure it will be another addictive medieval style RPG with different classes and such, just no more Cain and Lords of Various Horrible Things, but details are pretty hush hush right now.