By Sam Dykstra/DFP StaffWith Friday’s 3-2 win over Northeastern, BU has already clinched home ice for the Hockey East quarterfinals. Now, all that’s left to decide is its ultimate seeding for the tournament and its opponent in that opening round. The Terriers can finish second, third or fourth based on the following Saturday night scenarios:SecondWin and a UNH loss to BCThirdWin and a UNH win or tieTie and a Merrimack loss or tieLoss and a Merrimack lossFourthTie and a Merrimack winLoss and a Merrimack win or tie In other words, the Terriers will be rooting for BC for perhaps the first time in their collective collegiate careers. (Funny how the world works, ain’t it?) If they were to finish third or fourth, they would either get Northeastern or Maine, who are locked into the sixth and fifth seeds regardless of Saturday’s results, at Agganis in the first round.To see for yourself how everything could shake out, here’s the Hockey East standings as of this moment:1. BC 39 points2. UNH 383. BU 364. Merrimack 355. Maine 326. Northeastern 257. Vermont 178. UMass 159. Providence 1310. UMass-Lowell 10BU owns the tie-breaker over UNH with a 2-1-0 record against the Wildcats this season, while Merrimack would break a tie between itself and BU thanks its 1-0-2 record against the Terriers. The only other intriguing race comes at the bottom of the standings where UMass (at home vs. Maine) and Providence (at home against Merrimack) will each fight to extend their seasons for at least two more games. UMass can clinch that last spot with a win, tie or Friars loss.National Picture: BU remained tied for 15th in the PairWise with Maine and Dartmouth after Friday’s win and would still be the last team into the national tournament if the season ended today thanks to the RPI tie-breaker. A 3-2 Colorado College (14th in the PWR) win over No. 22 Wisconsin did nothing to help the Terriers move up at all.