Would continued capital-ship construction push the Royal Navy toward high-pressure boilers?
Short answerIt could, because recurring fast-capital-ship designs would keep machinery efficiency and power density under active development.
NotesThe answer is deliberately conditional rather than a firm prediction. New battleships and battlecruisers would repeatedly force designers to trade machinery weight, speed, and protection. Continuous orders would also keep boiler firms and naval engineers working on successive generations instead of restarting after a long pause. That environment makes earlier high-pressure development more plausible, even though the treaty change alone does not guarantee adoption.