Some could just immigrate to Mindanao, if peaceful and conservative enough of a state. Otherwise, its your naturally richer version of Northern Ireland.
Well, slightly spoilery, but I've determined a 'general thumb' for Luzon, Mindanao and Visayas for 1948.
Luzon:
49th state admitted to Union (
Philippine Islands Statehood Act)
Population: 8,470,118 (3rd largest state)
Electoral Votes in 1948: 26 (24 Reps + 2 Senators)
Sits between
Pennsylvania (2nd largest) and
Illinois (4th largest)
Mindanao:
50th state admitted to Union (
Philippine Islands Statehood Act)
Population: 5,114,370 (9th largest state)
Electoral Votes in 1948: 16 (14 Reps + 2 Senators)
Sits between
Michigan (8th largest) and
[REDACTED] (10th largest)
Visayas:
51st state admitted to Union (
Philippine Islands Statehood Act)
Population: 2,415,815 (24th largest state)
Electoral Votes in 1948: 9 (7 Reps + 2 Senators)
Sits between
Iowa (23rd largest) and
Louisiana (25th largest)