#1 - Ideologies
(i had a guide for this, so like, read it please)
Here it is: https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3379455278

#2 - Randomised war
So when you're fighting a country, there is no pattern to fighting, the pattern is just, it pushes forward, and that's it, so my idea here is: dividing the frontline up to three pieces, which both have their own unique strength, the MAIN strength will mainly effect them by giving them stronger strength, if the main strength is low the strength spread across the frontlines will be weak, now each frontline will be weaker but there will be at least ONE or TWO fronts that have two strength, while maybe one will have like 1.

visual representation:
(ALSO there will be icons representing the strength on the frontline, which can be disabled in settings)

#3 - Flag divisions
Okay, so I'm sure by now, maybe you've watched Epic History TV, Oversimplified, Kings and Generals, whatever you get it, whenever they're fighting they always show some sort of representation for the armies/divisions/battalions, they're a flag usually, and that's what I want basically, pretty simple actually.
Whenever a war is happening, the flags will appear, they ONLY appear during war.

visual representation:

#4 - War reports
If you have played world box, I think you know what I mean by this.
After a war ends, how about in the history log you can check how: long it lasted, causalities, and finished result. for casualities, it will just pick a random number based on how: long it lasted and how much of a steam roll it was, like if both sides were stuck on strenght 3 for 100 years, the
casualities will be high, if it was a steamroll like strength 6 vs strength 1, causalities will be low, because there wasn't much time for the war to really, well, fight.

visual representation:

#5 - Population
This one is if you want something to change the experience heavily, so when a country fights another country, they just keep fighting, the only thing that can stop them is, well... gold. So my idea: is kinda the opposite of gold, instead of land, the more cities the more population, every nation will start with 50 population, similar to how they all start with 50 gold, so why should we care about population? Well in a war, you need population to actually have soldiers, so my idea: if you run out of gold OR population, you start losing, by the way, core cities will give more population every turn then a normal city does.

visual representation:

note: if you're wondering why all of the drawings look like they were drawn by some four year old, it's because, well uh, i'm lazy, and I don't feel like making a high quality map.

other note: also I do not except the dev to all of this, but hopefully they at least consider some of them.

#6 = Historical Borders
So, I'm pretty sure at one point in this game, you retried creating WW2, but you had a problem, see, you can't really get the borders right for the Sudetenland, Partition of Poland and Vichy France.

So heres my idea, I do not know how to explain it, but I'll get a game to represent this idea, first of all before I show it, let me explain the rough idea before the picture: My idea is that there is a 2nd type of border, that for the era will show some historical borders.

So this is a game on Roblox, called World Conquest which I use to do "larping" as a country, very extensive larping often requiring paragraphs for war. But ignoring that, here is my attempt at making the Sudeten border in Czechoslovakia.
As you can see. It's terrible, but when I add the "historical" borders, it'll give me the exact border so I can trace it and make it more accurate. (the blue borders are the historical borders)
Now look at how much better it is!
My point is, I think they should add a feature like this so you can make better more realistic borders, for each era. If you want the basic idea how much historical borders I'm talking this much: (it's a lot, if the dev sees this, just at least put in a few for each era)

V1.0
>Made the guide.

V1.1
>Added Changelog Section.
>Added "Historical Borders" suggestion.
>Renamed the guide to include Version name.

V1.2
>Tweaked the Guide's name.

V1.3
>Added the Link towards my ideology suggestion.