A County-class heavy cruiser for Canada

If the Royal Canadian Navy acquired a heavy cruiser in this period, would it use a County-class design?

Yes. Canada would buy a British design in that period rather than turn to a foreign supplier.

The audience asks whether a Royal Canadian Navy heavy cruiser would be a County-class design. The answer is yes: Canada would not buy from another supplier in that period. The existing British procurement relationship matters more here than an open international design competition. Dominion force structure depended on political and industrial networks as well as ship characteristics.