Diablo III Will Only Go To Consoles If It Requires "No Compromises"

Same with the console; we don't decide up front that we want to make a console product. We just want to make a great game. If the best experience involves a mouse and a keyboard, we'll put it on PC. If it plays better with a controller, that's the route we'd take. If it works on both, and we don't have to make any meaningful alterations or compromises to the experience, we'd make it for both.

He concluded:

 If we feel we can have a game on multiple platforms, then we'll do it. We're not afraid to - that's for sure!

TLDR: If a controller doesn't work well with Diablo III, a console version isn't happening.

Truthfully, if any Blizzard game were to make the leap, it'd be from the Diablo series since both Warcraft (including World of Warcraft) and StarCraft simply require way too many inputs. In addition, the entire business is about making money and making a game available on more platforms (especially such a high-profile game) is a great way to drive revenue. With that said, the fast-paced nature of Diablo III might be the greatest barrier for console fans looking to play the game.

So is Diablo III coming to consoles? Nobody can be too sure, but Blizzard are clearly interested in doing it, and as long as Sony and/or Microsoft don't get in the way, it's a serious prospect.