So, since everybody is flipping out, I asked someone in Admissions today what's happening...
There are 162 confirmed acceptances so far and 200 on the waiting list for a class of 188. They are waiting to hear from a couple of the feeder programs to fill out the rest of the numbers (those spots have to be held for those students per agreements) and also expect there to be a significant amount of WL movement after April 30th.
They also said that they have most definitely been communicating with applicants, so if you think you haven't heard back, then you need to check all your email folders (spam, promotions, etc.) If you're on the WL, then you definitely got an email.
Also, RFU g0t 12,600 apps this year and interviewed/will interview nearly 1000 folks. Each of those apps has to get screened (first by CASPR, then by academic metrics), then the ones that pass the minimum bars for those get reviewed holistically (read for an hour by an adcom) before it goes to the committee for decision to interview or not. After interview, there is another committee meeting to review apps again before the decision.
All of that takes time. Lots of time. And you want them to take that time, because if they only took 5 min with your app and got back to everybody faster, you'd stand much less of a chance of actually getting in.
On a personal note, probably a quarter of my classmates this year got their acceptances in May or June last year, so there really is plenty of hope on the wait list.
So, if you've interviewed and are on the wait list, hang in there.
If you interviewed and don't know if you're on the wait list, search your email.
And if you haven't been invited to interview, well... hopefully you have other options/ a plan B.