Will probably be a huge Zulu empire holding the whole south and east Africa, Mali somehow holding the whole west africa, a huge Inca Empire holding the whole South America, Aztecs holding the whole North and Central America, a united Indian Empire, Ming holding everything on Asia the Mongols or India don't hold, Japan too, and a Huge Aburjin Empire holding all of Oceania and Indonesia.
Oh, and let's not forget the great penguin horde invading from the united Empire of the Penguins in Antartctica. And a horde of Norse Vikings who somehow survived in Greenland and hold a great empire there.