Interesting new ideas about Austro-Hungary, I have some ideas of mine that I wish to add:
1. I presume that this event-chains are only for the case of CP victory in WW1. Then, about Hungarian rebellion I propose two event-chains:
- In first (If RCW is ongoing or Reds have won), Hungarian Soviet Republic starts a revolution and independence war supported only by Soviet Russia.
- In second (If Whites have won in RCW), Hungarian nationalists proclaim independent republic and start independence war (like
in 1848.). In this case all major European powers have option to chose to aid Austrians of Hungarians, depending of their strategic goals.
2. About Czech uprising, this will most likely provoke German annexation of Sudetenland.
3. Creation of Galicia-Lodomeria would most likely lead to takeover sponsored by Poles or Ukrainians. Ukraine will also most likely sieze Odessa region. Then Poland and Ukraine could start war between each other. Germany could intervene, side with one and attack the other country. German attack on Ukraine could lead to Soviet intervention in Eastern Ukraine (
Artyom Sergeyev and
Donetsk-Krivoy Rog Soviet Republic) and Crimea.
4. South Slavic nations of Austro-Hungary (Slovenes, Croats and Serbs) could start their independence war and unite with Serbia into Yugoslavia. This, however, is totally different state than OTL Yugoslavia since Serbia is defeated and razed in WW1 and could not lead unification like in OTL (In OTL victorious Serbia lost massive number of population). Zagreb is the capital city and Croats dominate in this "South Slavic Federal Republic" - this is the historical idea about unification planned by some of Croatian politicians pre-WW1.
5. Name United states of Austria is maybe not the best solution, since Austria is only one "crown land" of the country.
I propose one of these names: Imperial Habsburg United States, Central European Imperial States, Danubian Imperial Federation, Habsburg Imperial Federation.