P.S. Canada has a long history of religious tolerance. We have Mennonite, Hutterite and Doukhobor colonies. A historical human rights ruling in this country was won by the Watchtower Society to preach door to door. There are several wackadoo cults in Quebec, who briefly enjoyed sensational media coverage...until the media caught on that they were being used. We have sad history of cult deaths, too, such as the cult of the Solar Temple. We even had policital participation in 1993 by the Natural Law Party, intent on bringing peace to the world through yogic flying. They did not win any seats.
You predict a huge inrush of cults to this country? No need. The tolerance has always been here. That's why I sometimes call Canada, California-North. Without the tan. There does seem to be an upper limit, however, on how many people actually join.
On the other hand, Canadians also tolerate a higher degree of government interference than in the US. Charities who want to enjoy tax free status must register. This register is available online and you can:
I've already discovered that individual Kingdom Halls are searchable under "Jehovah" and the head office searchable under "Watch Tower" (two words).