So, apparently, everyone was supposed to have gotten that webinar email. People who didn't were those who were being considered EXCLUSIVELY for some of the SCPs (RMEP, for example), since they know where they would be placed.
I emailed them to ask about the status of my application, since I have nothing to lose from Indiana. I got a pretty generic answer that we are all still under consideration until a decision is sent to us, and the admissions office says they "reserve the right to extend admissions between now and June," meaning they *could* accept a few more people in April if they so choose, though I wouldn't get my hopes up based on the most recent years' threads.
Since most schools have been doing virtual interviews, applicants have been applying and interviewing at more schools than in most cycles. However, the top of the top applicants are still going to be the ones offered seats first. There will be quite a few applicants with multiple acceptance offers, and it follows that there would be decent waitlist movement this year after those top applicants narrow down their options.
Just thought I would share what I found out!