Warhammer 3 should have a realm divide option

I'm pretty sure a lot of people who have played Warhammer 3 for a longer time usually get bored of their campaigns because:

• They combat early hardship (which is usually the most enjoyable period) and establish around three provinces. By turns 20, 30, or 40, they become so strong that they're too big to fail, and the game basically turns into painting the map.

This happens to me a lot unless I make some silly mistakes. My solution for it would be to implement a secondary option like Realm Divide from Shogun 2. Just so we're clear, I'd want it to be in the campaign options menu so we don't force other players into it. Because WH3 is so much larger than Shogun 2, it would be pointless to make 200+ factions declare war on you. However, it would be cool if it had a lore-accurate Realm Divide.

For example, by turn 50 (or whatever you set in the options), all High Elves could declare war on you if you're a Dark Elf faction. I feel like that would be a really nice change to spice up the gameplay and add some interesting RP elements. Even though I'm not really into RPing in WH3, I can't deny that sometimes I go out of my way to destroy the factions my lord hates in the lore.

Anyways, let me know what you think. Would you like something like this in the game?

P.S.: I tried researching this or finding a mod for something like it, but I couldn't find anything. Sorry if this has already been mentioned or if there's a mod for this that I don't know about.