We had to sign a nondisclosure agreement regarding the interview so I don't think you'll get a lot of information on a public forum like this. I think the best answer to your question would be that...
I wonder how many people they interview in total? I read in a previous post that there are ~350 applicants? That's a huge number of candidates on a waitlist for 35
Did you guys get an email from the university saying you were "on hold" specifically? I also interviewed on the 17th but have so far only gotten a thank you for interviewing email with a "we'll have a...