out of the states mentioned the most likely ones to gain autonomy are Finland and Poland (despite the fact finland was undergoing russification), Poland was sorta promised autonomy should the Russians win WW1 so it kinda makes sense, the rest were not really that autonomous being considered part of the Russian Empire directly unlike Poland and Finland.
yea, the great game would be interesting to cover in events, however a Nazi-Russian alliance is a pipe dream as Russia would own lands that Germany wants.
wait, why would it happen? I mean Pan-Turanism was an idea supported by many of the people who supported a turkish state.
Mongolia makes a lot of sense to be a Russian puppet in order to keep it out of Chinese hands. (without the RCW this makes sense as Russia helped to liberate Mongolia from China)
Russia planned to integrate Manchuria should they have won the Russo-Japanese War IOTL, but they lost so we know what happens next.
regarding Sun Zhongshan and the KMT republic it is unlikely the Russians would support them as is unless Russia is a Republic and even then you have the Beyiang Government to support (pre-Northern Expedition) Now for Imperial China it makes a lot of sense to just restore Puyi to his rightful position just under Russian control or just use Yuan Keding (although that is a problem as you may get a Revolt against the Empire again by the die-hard republicans.
anyways if you want to play a victorious Germany, the rest of the events for them are put in and partially working (as the ministers are the problem, but all of them do fire)
I take note of your comments.