As for hockey, If another school or two join DI I think it's much more likely that we see a true West Coast conference involving the Alaska schools. It sure would save money for them and then you can see a school like BSU join the WCHA.
OTOH, I'm sure the WCHA would be very interested in having a couple Canadian schools join. It gives the league a chance to showcase and market itself to Canada. It can only help with recruiting especially since I'd expect many Canadian kids planning on playing college hockey to then want to stay in Canada, which mean teams like UND and DU losing out on recruits.