There is no mention of special Arctic features (ice-strengthened hull, insulated accommodations, etc.) in the otherwise-detailed video presentation of Captain Graham, the director of the Canadian Multi-Mission Corvette program. I queried Captain Graham about this matter a month ago, using his public email address as listed in the presentation, but he didn't respond. (I am after all a foreigner.) I'm interested in Canada's defense of its unpopulated northern regions, and in general, I think it would be wise to give all RCN and CCG ships at least moderate Arctic capability (i.e. a Polar Class rating), and to exercise that capability from time to time. But Scott Kenny, as we saw H_K thinks it unlikely that anything serious could fit into a design of 1.0 or 1.1 kt light displacement.
Apophenia mentioned earlier that the Kingston class has "proven surprisingly useful in relatively ice-free Arctic waters" during summers. Maybe real Arctic capability is another of those good-things-to-have that must be left off the Canadian Multi-Mission Corvette, due to Ottawa's weight constraint.
Canadian Navigation Trainer Competition for RCAF