I hate to be a downer, but I don’t see that happening ever. Building high-speed rail from Edmonton to Jasper is 3 or 4 times the cost of Calgary to Banff, and would gather about 10% of the amount of riders that Calgary to Banff.
In a world where funding is limited, high-speed rail between Calgary to Banff or Calgary to Edmonton is where the funding will go, if it even happens.
Right now and for the foreseeable future, all of Alberta‘s international tourists are going through Calgary and onto Banff. High speed rail between Calgary and Edmonton is something that would make sense even without the tourism, and those international tourists that go to Calgary Banff would have easy access to Edmonton.
I’m not saying, I love the idea, but logically it might be the best way to get international tourists to come here.