The Admission Office’s Perspective
First, the use of a waitlist at any given school can vary dramatically from year to year. A school might take 100 students from the waitlist one year and zero students the next. In general, more selective schools are less likely to use their waitlists because they will have a high percentage of admitted students who accept their offers of admission. They’re therefore much less likely to suffer from a shortage. For all schools, how they use the waitlist depends on the number of students who accept their offer of admission, and that’s not a question they’ll have answered until very close to or after May 1.