this is nice but you guys should focus more on mod compatibility, i'm sick and tired of every single update breaking my favorite mods and forcing everyone to wait for months until modders could figure out how to fix the mess you introduced into this spaghetti code you call a game.
Also please fix multiculturalism and assimilation, currently multiculturalism just creates an even more effective monocultural state than the ethnostate itself, i get how this would make sense from a government point of view since you are playing as the spirit of a nation, but it would be cool if we could have a way to get foreign pops but preserve their ethnicity, also the assimilation rates are frankly quite ridiculous.
On the note of historical accuracy don't get me started on how inaccurate the states and map are, i would highly suggest checking out the vicky 2 mods for that as the modders tend to do their homework better. Personally i recommend The Grand Combination for victoria 2 when it comes to map.
And while we're on that topic, please, for the love of god, make use of the split state mechanic, there is literally no sense in keeping it if you can't really utilize it, like make it possible to carve out the territory you want to keep and not have to just use debug mode to individually change every tile's owner if you want those sort of treaties. It would be also nice to keep your promise of having the tile carry data instead of the state itself, i can't remember which dev diary it was but i remember you saying that each tile was supposed to carry it's own data and the state itself is the coalescence of all the data of each tile.
Another feature i would like to see is to kind of rework how the cities/settlements are, i think in such a case Imperator Rome would be a good example where you can found your cities or at least choose where the cities are located as opposed to having pre-set city locations which don't always make much sense.
Also please slow the game down a little bit, perhaps add in the by-hour way of hoi4 timeflow because 100 years is just not really long, this is the first paradox game i have finished from start to finish and that's saying a lot.
Other than that, the game is great, i would really recommend it but probably once you fix the most glaring issues. If you don't mind me shamelessly plugging an idea, the game desperately it needs more industry diversification, like a social chain dlc with housing, police, hospitals, prison and entertainment, or a dlc about more base goods like furs, crockery and generally expanding the roster of trade goods, currently the goods list is way too broad in some places while way too specific in others and overall does not adequately reflect the different types of goods and industries during the victorian era. Dont be afraid to give out major features in dlc, if anything this gives me an incentive to buy the dlc and frankly i would prefer it that way instead of the current 15$ for a few 3d models.
Thanks for reading through, can't wait to see how this game grows throughout the years if i manage to live long enough to see it