2/20 interviews heard back last week. I am also on the tier 1 waitlist. Surprised about that because I thought my interview went really well. I have not heard of anyone getting an acceptance from that day, yet at least...I'm going to guess that they're holding back on acceptances for now because of COVID. Pretty sure that the waitlist will move when they know more about the upcoming year and after May when people start rescinding their acceptances.
I know several MSU students who are learning and doing their exams from home, so who knows if they'll even start by June.