Jerz
I don't have any official info from admissions on the timing this year, but from what I know of the process I wouldn't expect them to be in a position to release decisions any earlier than last year. My guess is they moved up the date into December to reflect the fact that for the past few years they've been able to release a majority of decisions in December anyway.
Thanks Jerz. I figured as much - just wishful thinking on my part, hehe. I'm actually happy about the 12/20 date. Whether the outcome is good or bad, that's one less distraction over the holidays...
You've neglected to account for the specter of... "wait-list"