That will never happen.
CN rail won't allow anyone on that stretch of railine but there own equipment.
And there is a federal bill which doesn't allow CN to run any sort of passenger service in Canada. Also train travel in canada is highly overpriced because it's under used, under developed, and just not profitable enough to venture into.
you know there is a passenger train to whistler right.
however like all the train travel in the west its a high priced tourist deal