I regret having to tell you this, but don't hold your breath.
Circa 20% of those interviewed are usually offered acceptances before the end of February. That means that almost double the eventual class size are offered places. At that time a very large number of both the interviewed and non-interviewed receive the bad news, namely, rejection letters. There is also a wait-list, but there is little use calling before June. If you are wait-listed, write a letter of intent to attend if accepted, and if you really want to go to P&S, write Dr. Frantz reguarly.