we should have EU4 sessions but we never will.
eu4 is a stuff game to be playing multiplayer. There's always one dude with the stuff PC or connection that will force the game to stay at 1-2 speed. Even if you only have two players you're gonna be stuck on at most 4. The most optimal play style of the game is 5 speed, and pause for everything. It's the only bearable way to play the game for me cause everything is poopie butt slow.
also organizing it would be hell because the slow speed would mean the session would be literally hours on end to get through 10-20 years if you're lucky - and of course there will be people that can't play so you gotta let the AI get curb stomped as your country if you got anything else to do and they continue without you