What might have followed the Lion class

Did the Royal Navy have plans for a battleship class after Lion before World War II?

It expected a successor but had not fixed the design, leaving room for either another 16-inch ship or an 18-inch response to foreign developments.

The absence of a completed successor plan does not mean Britain intended to stop building battleships. The Admiralty wanted to see how the Lion design and international programs developed before committing to the next class. Sixteen-inch guns remained the likely starting point. Discovery of the Yamato class or other heavily armed foreign ships could have pushed the follow-on toward 18-inch weapons.