Quote from Bommes: Go
Hmm, according to this slide everything past 2013 is long-term, and I think no one would have expected to see an All-Stars release in 2013 anyways?
They probably aim for summer 2014 right now, so since it is Blizzard I would expect it to come out a couple of months before or after the new WoW expansion. That's all wild speculation though, who knows how big they want to make All-Stars and how much time it will take to develop. Maybe it's an actual long-term project aiming for 2015-2016.
Also Sixen, don't be sad. Blizzcon is almost here and I'm sure they will show a ton of All-Stars information to feed your desires ;)
Well, according to the BlizzCon 2010 docs, BAS was going to be released "in a few months," and was supposed to come out with the other custom maps they released (Auir Chef, Star Jeweled, etc). But yes, we should hear a lot more at BlizzCon 2013, and the restarting of Titan gave BAS more devs, so we'll see!