Ummmmm . . . . I got nothing. Maybe a kinder, gentler Japan (one that doesn't decide to choke itself on China and the rest of the Far East), that the West sees as a counter to the evil Communists? This would need an earlier victory for the Communists . . .
I can see maybe this happening in a TL where WWI takes less time (say successful Gallipolli) leading to quicker Entente victory (No American intervention- Kaiser Wilhelm II abdicates in favor of son post-loss- Germany monarchy remains)- which means Russia now has actual ownership of Constantinople, and various other bits of the Ottoman Empire- Russians create super Yugoslavia by cutting Bulgaria up some more and marrying it to Yugoslavia- British now see Russians as main threat in Europe- Anglo-Japanese Alliance remains- Japan remains sane due to this- Germany makes noises- Russia makes noises back and Germany decides its not a good idea to make noises anymore (no Russian CW means Russia has way more industrialization= obvious superiority to Germany in head to head fight)
Anyway the long and short of this world is that WWI is the true "War to end all Wars"- the Great Powers had shed enough blood to know it was a bad idea, but the killing didn't go on for so long that the old order collapsed. Post WWI I foresee something along the lines of the Congress of Vienna- where Germany is punished to some degree, but not humiliated as per OTL. The Great Powers maintain their colonial empires for longer, spinning them off as independent countries under tighter control (limited independence). Sub-Saharan Africa doesn't collapse as per OTL, because the Asian colonial enterprises that bankrolled the African colonial administrations remain under European control longer. This is not necessarily an entirely nicer world however. There is little Western guilt for the Age of Imperialism, and white racial superiority theories remain popular. Longer control over colonies leads to larger settler populations in places like Algeria, Kenya, Rhodesia, and Manchukuo. On the other hand, the lack of Great Power military conflict means that armies are much leaner, oriented toward counter-insurgency campaigns rather than state on state violence. It has also meant that concerted research to create the atomic bomb has never been done. It remains a pet project of physics department in some of the West's leading universities.