BC will be a "no" on UConn...today, tomorrow, and forever. I am as jaded toward UConn as anyone and even I can't come up with a delusional argument that BC will suddenly become UConn's advocate.
That said, BC's "no" is just one vote and, to be honest, it is the least important vote in the ACC. BC has not carried its weight and has failed to deliver the NE as it once promised it would do. BC can't argue they want be New England's team in the ACC while floundering in winning, ratings and athletic infrastructure improvement. In fact, in arguing against UConn, BC will only highlights its own failures and the critical void the ACC has in the New York to Boston corridor.
UConn should be more concerned about the ACC football powers. FSU, Clemson, Miami and Louisville are a very, very influential block and have far greater control than their 4 votes. Sadly, timing is not good for UConn since clearly our football program hit absolute rock bottom last year. Our best hope should the ACC look to add now is that the recent football success of Clemson and FSU and the rising football profiles of Louisville and Miami make a "pure football add" less of a priority than it was in 2012.
Personally I hope the immediate ND speculation is nonsense. UConn is not optimally situation to take the ACC admission test right now. A couple of years of +.500 football seasons would really help our candidacy.