According to this article, Diablo III is gonna develop in console version. More players, more fun, new experience!
"can you confirm or deny Diablo 3 coming to consoles? Thanks. –TaNGoIX
Yup. Josh Mosqueira is lead designer for the Diablo console project. –Bashiok"
Jay Wilson: We’ve hired people to work on the console. We have an internal team. We’ve spoken about it since it helps with hiring. We think Diablo 3 will work on console, we’ve experimented with controls, etc. But it’s essential to us that it not compromise the PC game at all, and it doesn’t feel like a crappy port to console either. Both should stand alone and work nicely. But we’re not announcing anything until we’re more sure about it.