Were the two Tenryu-class and five Kuma-class cruisers part of the post-First World War planning being discussed?
Short answerBroadly yes, although they did not fully reach the intended endpoint.
NotesThe two Tenryu-class and five Kuma-class cruisers fit the broad direction of the postwar scheme being discussed. Their place in that scheme is qualified because the intended endpoint was not fully reached. The precise endpoint is not identified in this exchange.