It could happen - even if Radio-Canada didn't consider hockey as part of their general entertainment programming strategy, there's no denying Saturday night hockey in French would be a ratings winner for whoever had it. Besides, Radio-Canada has gotten into other sports programming in recent years, such as Quebec university football and soccer matches from Montreal.
I wonder if TVA or V (formerly TQS) would be interested in the rights. I know TQS had NHL hockey at one point in the 90s.