I'm also going to email them Monday afternoon/evening if I don't hear back from them.
I'm waitlisted to my top choice and the program said they're planning to hear back from accepted students by the 15th and let us know afterward. I'm slightly nervous about it since there will be 6-7 students attending this year and it's a great, competitive program. Although the email said I'm high on the waitlist, I'm afraid everyone has accepted the position.
Good luck to all and I hope we get in!