The applicant handbook says:
"Approximately 75-100 applicants who are not selected for an appointment by April 1st will be offered a spot on our wait list. Your record will be reviewed again following the May 1st appointment acceptance/declination deadline if you accept your spot on the wait list and update your file with an official transcript showing your most recent grades by May 1st. While some applicants will be immediately appointed from the wait list during the first week of May, additional appointments are often offered to wait list applicants through early June - the result of late medical disqualifications or appointment declinations."
Thus, I do not believe anyone will be hearing until the first week of May. Hang tight!