Yes, there are.
Certainly Canada Post has been aware of the government's intention to change this provision. It was first introduced in Bill C-14 in 2007. Canada Post has been producing corporate plans that have been approved by the Governor in Council since then, so I would say that Canada Post has already taken this into account, expecting that at some point in the near future the change would happen to the legislation.
That said, I have to go back and say again that these companies have been working in Canada and have been active for some 20 years.