Going Indognito mode..
@kleptomage
That’s literally all they have to do. All warhammer fantasy ever was is a bunch of historical countries, myths and legends combined with fantasy ripped straight outta elric, Conan and Lord of the rings.
Brettonia was just king Arthur and Lyonesse by Jack Vance.
Cathay just need to be Three kingdoms with more Chinese fantasy.
I know some old books mentioned a Dragon Emperor and monkey king so there’s two legendary lords already. Gotta have a chick so there’ll probably be a Mulan analogue. She’s popular these days.
Their mechanic will probably involve the Great wall of Cathay, probably preparing the defences before the Hung arrive, like Eltharions campaign.