Had my interview last saturday. From what I heard, the last interview is March 12th and there's about 230 applicants overall that received an interview. I've talked to some of the P3 students who had an interview last April and they received their acceptance letter by April 15th. So they might be sending letters starting the last week of March
They're trying to do things as early as possible this year. I hear they're hoping to have all the letters out during Spring Break.