The French model for colonization never was like the British anyway, the French colonists integrating a lot more into the local system than the British ones, who tended to remain very distant. As indicated earlier, Félix Éboué's policies are something to look at, particularly as he could very well survive beyond the war in this timeline and push further his ideas of local elites and giving more administrative power to the locals. Another very important difference with the Brits is the comparative lack of colonies with an colonist majority - no real soft/hard native replacement policy like in CANZUK where they got frakked hard.I've written a few snippets, but only the early days of it. The problem is how to develop it further - they aren't going to be happy being run from Paris (and eventually the French won't be happy about it either), but just copying the British model won't work either.
Full integration is pretty much unthinkable for at the very least a century, though, noone in 1950 Paris would want the Assemblée Nationale full of natives from the Empire, but further autonomy under a metropolitan leadership could work. The idea would possibly be to build the local societies to be more and more like the French one, though whether it could hold in the long term is hard to say, but the TLDR is that the French policy has more been towards a cultural/societal replacement than a physical one, a policy applied in France proper as well as in its colonies.
The other big obstacles would be the US and USSR, obviously, both of them inevitably mining the two Empires as much as they can to gain advantages over the Euros, just like IRL. My fear is however that a victorious France will not enact the numerous reforms it needs to get a modern enough outlook on itself and the world to deal with this properly, the same reforms that weren't enough OTL to overcome in the colonies the consequences of WW2 and the post-war treatment of the colonial forces. Hell, France without the CNR's political reforms is going to be utterly alien compared to OTL, and you have a very interesting opportunity here, @pdf27, in a timeline where de Gaulle and the others aren't as important as OTL: France without the ENA, without the generation of Resistance veterans, without the Nouvelle Vague moviemaking, without the strong legitimization of the Communists - for those here from the UK and US, Communists were a critical part of the Resistance here from 1941 onwards and had a relatively positive influence on us afterwards - without the Fifth Republic system, without the massive hit to nationalism. You can go crazy by following the path of the pre-war French statecraft, to which I recommend the Conseil d'État's website, it has English parts, and if you can check their pre-War decision style, you could get an idea of how to go forward after the War.