Where N3 and G3 capital ships would deploy

How would adding the N3 and G3 classes affect Royal Navy strategy?

Not radically: G3s would likely split between the Indian Ocean and Home Fleet, while N3s would divide between the Mediterranean and Home Fleets.

Adding N3 and G3 would not radically alter British strategy in this scenario. Two or three G3s would probably serve in the Indian Ocean, with the remainder in the Home Fleet. N3s would probably divide between the Mediterranean and Home Fleets.