Just because I started detailing my vision for uber-late age, I think I'll finish it.
Even though there's no one to implement it into the game and it will just remain ideas. (Maybe someone will like one of my ideas and mod it in
)
Abysia undergoes another change, one Abysian afraid of the strength of the Humanbreds manages to breed a superior brand of Demonbreds. The demonbreds manage to multiply rapidly and war against the humanbred, completely annihilating them, but the strength of the true-blooded abysians is not restored, instead they serve as sages and advisors to the ruling body of demonbreds. The demonbreds use vicious tactics of stealth and subterfuge, and use their strength and flying ability to attempt to conquer the world in order to sacrifice the population of the entire world to open up the Inferno and bring the demon realm to the world. Lots of blood, and quite a bit of fire.
The humans of Agartha were not strong enough in magic to preserve the caves of the ancient Agarthans, and they collapsed in an earthquake, burying Agartha completely and eliminating them from the map.
Perhaps a nation of buried dead rise from that?
---I'm tired again
I've got some more ideas I'll write down later--