As I get into more worldbuilding, fantasy lore, and world history, I see countless points of contention between peoples, and try to figure out how that could play out. Not telling you how it should be done in this case, just how I think this could play out.



I think, given how many different kinds of people who live in this hodgepodge empire, it's not that stable. There's very little--if anything--to build a common national identity off of, which is vital when trying to build an empire that will listen to you, and not try to kill one one another when you're not looking--or worse, when you are looking. Race; good luck. Homeland terrain; won't be easy, if at all possible. Religion; insufficient information. Language; insufficient information. Economy; insufficient information. Culture; the Southern races seem to be well-established to have rather distinct cultures. So again, good luck.



Even if they do have decent stability now, who's to say that's going to be that way for very long? What if it's only a very recent thing, and it's not gonna last long?



And none of this is to say that I'd be in favour of a fragmented empire like this. I find this tribalism to be one of our worse aspects, which was derived from our primitive origins as a species. It's just that the terrible thing is there, and many people--possibly even most--will give way to this baser instinct.



Again, you don't have to build the empire like this, it's just how I think it would play out.