Well, let me put it like this. I find a few dozen options not to be a list large enough to create 50+ very distinct nations. The sovereigns also lack options.
The cure? Whining? No! Mods. Or an addon. Which is just a mod that doesn't modify. In either case I will call it an addon. A community addon.
The goal is to add lots of options to the vanilla game but also to any mods that anyone makes. All in all, make custom character creation more varied and fun. They should be compatible with anything short of a complete game overhaul although some mods might not want to add all of them. They need not be balanced, that is why it is not a suggestion for the vanilla game but an addon something end users might choose to implement to make the game more fun and last longer.
I know that most people might make an individual option or a few for their own nation. Yet if we can compile every one of them into a single easy to plug-in addon even the uncaring masses might notice. Here is the place to say that you want to contribute to the community addon. And contribute of course.
We might want a good site for hosting things for when we get the tools. I plan to make as many as I can think of, but if someone comes up with a good suggestion but doesn't have time/knowledge to make it I can try to do it for the grater good. (Or another one of the people who say they can in this post.)
Here is a general template for making a suggestion: (You don't have to include this but it would make it all easier)
1. Type of option sov/nation (or race etc. if those appear later)(Sovereing goes in light green and nation in light blue for easy reference)
2. Name if you can think of one
3. Size of Change (Small change to gamebreaking overpowered)
4. Short description (for the list)
5. Long description (for the code + mechanics)
6. Background if you are feeling like adding one