I'm highly doubtful that Chinese province boundaries would be exactly the same here as OTL
I just ignore the internal borders; they're OTL ones that for some reason have been left in despite all the butterflies.
Anyway, I've been working on Africa and have encountered a problem. As far as I can tell, there's no clearly established canon or timeline for the second world war; who's on which side, which areas are the key theatres, who wins, who loses, who (if anyone) swaps sides, drops out early, etc. Given the world-shaping nature of a world war, I suggest we make it our first priority to determine
exactly how WWII goes, before we do anything else, and certainly before we work on post-war to present day history. I think now most interwar history is reasonably established, but after that is a patchy hodgepodge of random ideas. Once we work out the details of WWII and the subsequent peace, then we can focus on 50s history, 60s history, etc until we reach the present day, but trying to build a modern day world (or even the individual histories of certain countries) is very difficult without the foundation that is knowledge of the course of the war.
However, while I can't determine the look of post-war Africa just yet, here's my proposal for what Africa circa 1928 would look like.
I'm still thinking about how the Middle East fits into this.