1) More then one culture\one faith in province. Heretics and etc.
2) More modificators, events, decisions x)
3) Leaders and Rulers with portraits. Better government. Something like it was in Rome, maybe.
4) :glare: Zaporozhian Cossacks needs always to be of christian faith! Not sunnism, like it was 90% of time in EU3. Although, they still can be catholics\protestants\etc..
5) More historical titles where it can be. Leader of cossacks was Hetman, not Khan. Moscovia had Tzar, not King, etc.
6) Do something better with Hordes...more historical, idk.
7) If there would be time of American Revolutions...Pleeeeeeeaaaassseeeee! Something more special...Or even, maybe, events or, huh, "relations with colonies" menu? Anyway, colonies needs special mechanics, i think. It even could be half-independent parts of country (not a big one, sure).
8) Pirates...maybe events about them too. Raids! Bases. And sometimes they can become something really dangerous even for big fleet. And don't forget about patents...
9) And there was idea about new system of explorers...but i had lost it cause auto logoff -_-. Well, it was basic on slider "interventionism-isolationism". More interventionism - more events about explorers, that could ask for donating them and than to disappear, found something, become more important (merchant, great person), back and tell people about "far countries" that could lead for many different results...Although, isolationism means more stability, emphasis on inner country problems...
Enough for today. Or if it all is really bad (or just my english

) — enough at all.