The French have big, big problems in Algeria. They can keep a lid on Algeria by force potentially for a long time, but even at best, Colonial Algeria is likely to look like Apartheid South Africa in the long run.
If so, does that mean that France is still eventually forced to let Algeria go?
Also, what about Tunisia, Morocco, and French Sub-Saharan Africa?
French Indochina could turn out better but with a PoD in early WW2, the French would need to accept the Vietnamese as equals inside some sort of "French Commonwealth", keep the Japanese out of Indochina and do a better job of developing Indochina to gain any real "buy in" to the Empire by the locals.
Wouldn't there be too many Vietnamese people to make all of them French citizens, though?
Likely, they won't be able to do that, and the best they could hope for is to have Vietnam as an ally outside the Empire and Laos and Cambodia as protectorates with control of their internal affairs.
Wouldn't Vietnam oppose this since it would view both Laos and Cambodia as a part of its own sphere of influence, though?
Syria might evolve into a close ally of France if everything went well (and be very deeply integrated into the French economy). I'm not sure if they would really stay a part of the Empire.
Why exactly would Syria be deeply integrated into the French economy?
My gut says that the French would recognize that Syria was a mandate and that it would need to be let go during the 50s or 60s.
OK.
Also, though, what about Lebanon?
As for the rest of the French Empire, the other African and Pacific colonies could potentially mature into members of a French Commonwealth that had a substantial feeling of "Frenchness"
Question--would all of the people inside of the French Commonwealth hold French citizenship, or what?
(though in places like Morocco, that feeling would be second to their feelings of "Moroccanness"). Morocco and Tunisia would likely be protectorates of some kind, and gain more control over their internal affairs as time went on.
Wasn't Morocco independent for too long to permanently be a French protectorate, though?
West Africa would be where the French would be likely to have the most success - even in OTL, the region still is very much orientated towards France.
Out of curiosity--how large were pro-independence sentiments in West Africa in our TL?
As far as the decolonization of Britain, the British Empire is already a dead empire walking. WW1 killed it.
Why exactly isn't this also true of the French Empire, though?
Also, specifically, what do you think (in detail) decolonization in British India, Palestine, the other British Middle Eastern colonies, and the British African colonies would look like in this TL?
The smaller European empires, well, I'm pessimistic, but I don't know so much of the specific history of those cases, so I won't say anything on them.
OK.