I had the same question, but in my searching I've only come across one reference, but that is a little back-handed - the
Frugal Photographer out of Calgary says they'll take "uncommon color print films with rem-jet backing (i.e., "Famous Brand," Signature, Seattle Film Works, and others), which most photofinishers refuse".
The only rem-jet backed films I'm aware of are the motion picture films, so I'm assuming that's what they mean.
However, they still charge $15/roll for development, so still not cheap.
I still think there has to be someone in Canada who processes ECN-II on a larger scale - in recent years the movie industry in Canada generally has produced many films - I find it hard to believe that all the films are being sent to the US for processing.
To that end, I sent a question the other day to the local amateur film association, asking who does ECN-II processing. I will definitely post back if I find out anything.