Honestly, they're probably waiting to see how many accepted students accept/decline their offer of admission. I would just say be patient, kick butt in your last pre-reqs, and stay hopeful. Waitlist is great, just remind yourself that you still have a chance. Personally, I don't know which program I am accepting yet. Our deadline to submit a deposit is March 1st, so you have so much time yet to get moved to "admitted."