Frankly speaking, it's unthinkable that Canada would not join if the U.S. and other countries sign the TPP. Even according to your own analysts, Canada would lose huge benefits. Actually, one of the values of the TPP to Japan lies in North America, because we don't have any free trade agreement with Canada or the United States.
I really hope that Canada and other countries will join the TPP, so that we can form a much greater economic entity under which we could pursue further economic growth.