Of course, such action was unlikely - Saint Domingue was richest French colony, and Canada was quite poor comparing with that sugar island. However, even more successful British campaign in the Caribbean could end with capture of French colonies in this region. Maybe, facing complete disaster in America, Louis XV might agree to British demands in Caribbean, obtaining return of Canada?
In such case, how British colonists would react at peace treaty? Would they become more loyal (because French threat would continue to exist), or, quite opposite, they would rebel against government London (because it did not defend colonists' interests at the table of negotiations)?
Would France intervene in the British-American conflict, using its base in Quebec?
If yes, on whose side would the French fight?
Would French-speaking Canada extend its borders, include Manitoba or even Louisiana?
In such case, how British colonists would react at peace treaty? Would they become more loyal (because French threat would continue to exist), or, quite opposite, they would rebel against government London (because it did not defend colonists' interests at the table of negotiations)?
Would France intervene in the British-American conflict, using its base in Quebec?
If yes, on whose side would the French fight?
Would French-speaking Canada extend its borders, include Manitoba or even Louisiana?