I would say you'll probably hear back sometime soon since most deposits were due this week I think. So any extra spots that are opened up they'll probably want to fill up soon and go to the waitlist!
I wouldn't say you're unofficially waitlisted. I heard back from a school with an acceptance today and still have to answer by the 15th. But as far as I know this school hadn't accepted anyone as of last week so i think some schools are just slow or wait until the very end to give out their acceptances, rejections, waitlist..