The likely British battleship after Lion

What would the British class after Lion look like if the United States built Montanas and there were no Second World War?

Probably a roughly 30-knot enlarged Lion with four triple sixteen-inch turrets.

American battleships could accept lower speed because Pacific operations brought them toward the enemy or drew the enemy toward them. Britain had to respond across a global empire, so the successor would probably retain about 30 knots while adding a fourth triple sixteen-inch turret to match Montana's twelve-gun battery.