Last year decisions came out late February and it seemed January (and some December) interviewees did not get any results. It is my conclusion looking at last year's thread (which itself references older threads) that a January+ interview for SUNY Downstate is an automatic WL at best. (I count not hearing anything until getting an A in May as the same as getting off the hidden waitlist you were on). Sucks, since I haven't even had my interview yet, but it is what it is. They do have WL movement.
Maybe they change things up, but I would not count on it.