A series of House of Lords decisions at the turn of the 20th century established that there was both concurrent jurisdiction federally and provincially, generally, in the area of corporations. So it is possible to choose either incorporation under federal or provincial law, essentially--except for banks, of course, which are federal. In most other areas it's concurrent jurisdiction.
Once you are under one particular statute, you know what the rules are, and in most statutes, such as the CBCA, you can move into the statute or move away from the statute. One exception is Quebec. Quebec does not allow you to export the corporation out of Quebec.
This new act, I believe, will have a substantial harmonizing effect on the provinces. As we saw in the case of the CBCA, nine out of the 13 jurisdictions subsequently adopted versions of the CBCA as their provincial business corporations act. Saskatchewan has already adopted a not-for-profit corporations act that's based roughly on the CBCA.
So this is going to be extremely influential for those reasons and also because, in my view, the provinces can't really deviate that much from the federal model.