In terms of the Brown Acting program, the email that we got after auditions were finished implied that we wouldn't be hearing unless we were either admitted or added to the waitlist. Here's a quote from the email:
Acting candidates who are admitted on our Primary Acceptance List will receive a phone call by March 2.
Acting candidates added to the Wait List will be contacted by the second week of March.
If you have not heard from us by March 15, you should feel free to consider other options available to you.
The good news is, it's not March 15th yet! So there's still time to be contacted within the next few days.