What Britain would build with foreknowledge of 1939

If the Royal Navy of the 1920s knew how the next war would unfold, what would it build?

Large fleet carriers, G3 battlecruisers, and N3 battleships in numbers sufficient to form carrier-capital-ship task groups.

The canceled Admiral-class hulls become especially attractive carrier candidates. The imagined fleet uses multiple balanced task groups rather than concentrating on a single ship type. Large carriers would operate with fast G3 battlecruisers, while N3 battleships preserved heavy-gun superiority in a home battle fleet. Foreknowledge changes both what Britain builds and how it organizes ships into mutually supporting forces.