San Jose's building is booked Sunday. St. Louis' building is booked Friday & Monday for concerts, which almost assuredly makes it likely the WCF will start Saturday (in the 8 p.m. NBC timeslot), pushing the Bruins into NBC's 3 p.m. Sunday timeslot for Game 2.
But the timing of the WCF Game 2 can't really be determined until the NHL knows if San Jose or St. Louis is hosting. Either two contingency schedules will be released (a la the end of the first round with Washington/Carolina playing Game 7) or the NHL will announce the dates of the two weekend games with the rest of the series to be announced after the WCF teams are determined. If San Jose wins tonight, WCF will likely be Saturday-Monday for Games 1/2 (and the ECF Thursday-Sunday-Tuesday for the first three games), and likely alternating after. If Colorado wins & St. Louis hosts, Game 2 for the WCF would *have* to be Tuesday and that would likely throw a wrench into the Bruins-Canes series (likely forcing either a back-to-back for someone or a second three-day break).