My overall concern with the Vicky series, having played V1 and V2, is that given the short window of time in which the game takes place - the pace of change in prior Vicky games was never "spiked" enough for extreme revolution/national change events.
For example, Russia went "all in" (or die) when the Bolshevik Revolution hit. The metrics didn't just keep creeping along - it was like a total overhaul. Elites/Aristocrats removed in mass numbers from society. So the old Vicky games with slider bars and the slow creep of "change" never could keep up and show these dramatic purges/societal "replacement" activities.
I just wonder how Vicky 3 will potentially improve upon that, to really show a "purge" or replacement scenario, where a societal change starts to rapidly accelerate who wins/loses (and thus, who is still in the economic engine of the nation).
And just the opposite as well - if I play a Vicky 3 game in which I am trying to STOP revolution, even though I know it's ahead of me -- such as playing Russia, and instead of the game being "on rails" to 100% of the time result in Bolshevik Revolution, what if I play Russia as a pascifist/isolationist nation that stays out of World War, and instead I am constantly trying to improve the quality of life for Russian citizens for my entire play through? Will I still face the Bolsheviks ~80 years after game start, no matter what I do to improve Russia? I hope you see my point, that the Vicky 3 game should accomodate some "change the world" pathways where if the gamer puts in an effort, they "change history" and avoid the extreme disasters as occurred in the Real World. In fact - give an Achievement for that, for keeping Russia from Revolution.