An invasion of Japan would redirect Royal Navy production

How would a prolonged invasion of Japan change British warship procurement?

Britain would finish more Battle-class ships, accelerate and possibly enlarge the Daring class, and shift production away from Atlantic corvettes and frigates toward destroyers, cruisers, and carriers.

Atlantic corvette and frigate production would likely fall sharply once Germany is defeated. A continuing Pacific campaign would instead demand fast destroyers, cruisers, and aircraft carriers. Battle-class construction would continue, while the Daring class could arrive earlier and in greater numbers. Procurement would follow the surviving enemy and theater rather than an unchanged wartime plan.