When a paper design is not a cancelled warship

Was a 1937 J-class destroyer design cancelled?

The J class was built. Larger alternatives considered within the Admiralty were unselected design options, so describing them as cancelled ships is misleading.

The built J class emerged from consideration of several destroyer options, including a larger design related to the Tribal approach. A drawing could progress through the naval constructors' office and Admiralty discussions without receiving an order. Describing every unselected option as a cancellation confuses design exploration with an abandoned construction programme.