Lowell, Northeastern, Providence and Merrimack are currently 14-17, respectively. Not all can or will make it. Even if all goes well, it's possible just two of the four make it. There's also Boston University at No. 19 making a charge. There's also a decent chance a team like Clarkson, Harvard or Cornell wins the ECAC Tournament, which would propel either of those teams into the 15th slot, making it further unlikely that Hockey East will get more than two teams in the NCAAs.
I see those ECAC teams or one of the Hockey East teams as the best chance for an "upset" in the conference tournaments that would bump out the No. 15 Pairwise team, or even No. 14. It's hard to see any other conference producing a winner that would upset the applecart. That means teams at No. 13 or better are pretty safe.
Bracket ABCs: February Edition
In:
Michigan
Bubble:
Providence
BU
Out:
Connecticut (unless they win HE tournament)
ASU (4 GR, last game March 12th)