I also support this game. There is no simulation for the Enlightenment in EU4, and no good way to simulate it at the moment in the game. One possibility I can think of as an Expansion to EU4 (EU4: Enlightenment) would be that once the Peace of Westphallia fires in the HRE and the Wars of Religion end that in High Base Tax provinces (12+ish) there is a chance for the Enlightenment to begin, which will create a Papal/HRE like tab at the bottom of the screen which creates characters and their locations, and you can interact with them, encourage them to come to your country, etc... and they give bonuses/punishments (slower autonomy decrease but greater likelihood for Base Tax increase) and they can also be executed but this would create a very large penalty (huge revolts etc...) and if a country had enough figures there is an increased likelihood for a revolution. Probably could be better done in another game but Art of War has also shown they are not afraid to do this kind of expansion for the game.