Hi Cheeseman,
I also applied to BU PhD in education but my program is language and literacy education, different from yours. I have yet to hear back from them either, but the graduate office writes in their email that "PhD applications are under review but will wrap up in the next few weeks" without mentioning interviews. Not sure if all programs in BU Wheelock will have interviews or if the reply I received can be applied to other programs. Hope it can help a bit, tho.