This is a concept for a timeline where the Great War ends in a draw. There are some changes in German leadership early in the war and because of that the US doesn't join the war and the stalemate on the Western front is eventually solved by a mutually agreeable peace treaty in 1920.
The Febuary and October revolutions still happen but the course of the Russian civil war is different, mostly because Germany has a hand in it. That leads to the creation of several new countries in Eastern Europe and the Caucasus.
The Ottoman Empire doesn't survive long after the war. It's torn apart by ethnic strive from it Arabic and Christian population. (Here I'm not sure about the existence and size of Kurdistan and borders of the Arab nations are drawn kinda randomly, they need a rework)
Austria-Hungary on the other hand limps on for another generation and finally dissolves in the 1940s. The ending begins with the succesion of Hungary. After that Cisleithania dissolves mostly peacefully, In Hungary the other nationalities have to fight for indepenance and after years of war and intervention by several great powers Croatia, Slovakia and Transylvania reach independance.
All of this is very much a work in progress. So, yeah, gimme your thoughts, I'm very interested