Fellow Bren applicant here.
I haven't heard anything yet, nor have the other people that I know who applied.
Looking at the results page for Bren, the earliest reported date is Feb 11th. That was in 2014, and they likely have more applications this year than they did then, so it will probably take them longer to process them all.
That being said...waiting sucks. Hopefully we hear sooner rather than later.
Good luck!