Thanks, everyone, for pointing out that Diablo III has been confirmed to be in development for consoles via a Twtter post by Blizzard community manager Bashiok, even though we already knew that.
I'm not quite sure what all the fuss is about here. Blizzard has been candid about the fact that they had a team working on porting Diablo III to consoles for months now. During BlizzCon 2012 it was mentioned multiple times, most notably by the game's lead console designer, Josh Mosquiera. Having a lead console designer is generally a dead giveaway that something console-related is up.
It does bear mentioning that until Blizzard officially announces console versions for retail release, Mosquiera and team are still actively exploring the feasibility of Diablo III on consoles. That is their project.
Still, more confirmation that something could potentially happen is always nice. Thanks to everyone that sent this in!