Therw will be no Cathay, I'm not going to go an further east than the Ogre Kingdoms.

A probable faction list;

Dwarfs
Vampire Counts
Chaos Dwarfs
Ogre Kingdoms

Altdorf
Middenheim
Kislev
Brettonia

HE
DE
WE

Araby
Tomb Kings

Lizardmen

Chaos
Slaanesh
Beastmen
Skaven
Orcs
*Another Barbarian faction, possibly amazons*