The Fedlibs have 17 seats in B.C., most of them in the Vancouver area.  They have 4 seats in Alberta.
Political calculus would suggest Trudeau, with a knowing wink to whoever is running B.C., will abandon his constitutional responsibilities and passively allow KMX to be asphyxiated.
The immediate outcome of this will leave Rachel Notley, fresh from fitting Albertans with their carbon tax hair shirts in a naive search for "social licence", looking like a fool and being thrown out of power in 2019.  Other consequences for Alberta, B.C., and Canada will follow.
But time will tell.