Depends on how you apportion things and how much of the Philippines would become US. I suspect that the Muslims sections would rather join Indonesia than us, don’t you?
The population of the Philippines, minus Mindinao, is around 80 million. At 700 000 per district, that’s 114 new Members of Congress, and presuming the House stays at 435, about 25-30% of the House would be Catholic, Spanish-speaking Filipinos.