Did the Royal Navy consider an updated Nelson-class layout for the ships that became the King George V class?
Short answerNot directly; later 16-inch concepts would probably have restored an aft turret rather than repeat the all-forward layout.
NotesThe Royal Navy did not seriously plan a simple updated Nelson when designing the next generation. It remained interested in developing 16-inch guns and triple mounts. The likely alternative to the 14-inch King George V arrangement would have placed one of three triple turrets aft. British designers could preserve useful gunnery technology while rejecting Nelson's most restrictive layout choice.