November 17, 2012.
Do the math and we’ll probably see it around Spring 2013 at the earliest. Oh, I haven’t mentioned this before, but I really love that their sticking with the “(not)” title. You Can (Not) Redo sounds so much better — and, I guess, fitting too if you think about it — than Quickening.
And here’s a new-ish, cam shaky preview too that I found via the forums. Warning: it’s loud.
UPDATE: Here’s a much better angle: