Here's another idea as food for thought - an MA terrain based on the Central Philippine Islands.
This realistic terrain is a mix of islands and water, no land area is very big so strats would probably have to been spread out through a country's territory. There are passages everywhere for CV and BB Group assaults. Sibuyan Island is near the center of the map and could probably serve as the central GV-only battle area.
Maybe someone could come up with a better division of area for the 3 countries; it's tough when you are working only with real-world terrain. But we now have an ETO MA, an Easter Front MA, and I though it might be nice if we could get a real world PTO terrain...a place where the USN and Japanese aircraft would feel right at home, not to mention the RAF skins depicting aircraft from the RAAF and RNZAF.