Note: This is not a suggestion at all. I just love alternate history, and thought of one about the game/mod Wars of Liberty itself.
Wat if Wars of Liberty didn't decide two create two separate latin American and Anglophone culture and decided on one "colonial culture" based on countries that gained their independence from Europeans, but retained the culture of the mother nation. I would imagine, this colonial culture would have Anglophone's faction age up, and LA's immigrants and town hall.
So me thinking about the LA nations:
Mexicans - Republic vs Empire? Conservatives vs Liberals?
Brazilians - This would definity be Republicans vs Royalists (Republic of Brazil vs Empire of Brazil).
Haitians - Afro-Haitians vs French colonials?
Columbians - Gran Colombia vs "Colombia" (after Gran Columbia dissolved)
Would would be the factions for other LA civs like Argentine, Paraguayans, Peruvians, Chileans, etc.
For Anglophone, I think
USA would get Irish and German immigrants.
Canadians would get Ukrainian (is that still a thing?) and Irish
Australians could probably have its own immigrant nation, Afghans, as well as CHinese.
So what do you think? What if LAtin America and Anglophone were one single culture? HOw would everything be different