@futureOTsj , hey, I just got back from the info session at WCU. To answer your questions:
how many applicants they usually get per application period: they didn't answer this because it's such a new program, they keep getting more and more applicatnts.
how many student they accept: 28 per cohort, twice a year
As well as the average GPA's of the incoming classes: didn't answer this either-they said it varies because they stronly base their acceptance of students on the prerequisite GPA and the interview. (they said they don't use your undergrad or grad GPA, only the prerequisite GPA to base their decision on!)
And, if they defer applicants to the next cohort: Yes, they said: They will either accept you, waitlist you, waitlist you with admission to the next/upcoming cohort, deny you with the ability to reapply, or deny you without the ability to reapply.
Hope this helps!