The Online Donation System in the U.S. uses the Automated Clearing House (ACH) system and requires U.S. banks. If a similar system is being set up in Canada, it would need to be independent, require Canadian banks, and use a transfer system internal to the country.
I would not be surprised if there is work being done for a Canadian system but, as russellhltn says, we never really know if or when until it happens.