What modern design tools might have meant for Fisher

What might Jackie Fisher have designed if he had modern naval CAD software and people who could use it?

Probably a very fast, powerful dreadnought: a longer, narrower hull could support roughly 24 knots and perhaps heavier 12- or 14-inch armament.

With modern design software and capable staff, Fisher would very likely pursue fast, powerful dreadnoughts. Once he accepted superfiring arrangements, the tools could help explore a narrower and longer hull within the capabilities of contemporary yards. The improved length-to-beam ratio might raise a dreadnought from about 21 to 24 knots. Depending on the gun and turret choices available, the resulting ship might retain 12-inch weapons or move toward 14-inch guns in twin or triple arrangements.