There were actually 16 interviews. And four on the wait list as for now (well based off this forum). There are usually 7 slots for the 3-year, and 10 slots for the 2-year. However, not too sure what the yield is looking like this year. Also, I doubt it's based entirely off your design skills, because I come from a heavy design background, and I still wasn't selected in their first-group for their HIGHLY curated class. It all depends on the committee and what they wish each class should be like. Someone could've had a worse portfolio than you and received admission, but they wanted a class that was incredibly diverse. Who knows. We could never know what was going through the committee' minds.
Anyway, congratulate yourselves for not receiving rejection letters, and instead having the opportunity to being in limbo! Good luck on everything else! @rexkingiv