Would be a nice touch if they're going in that direction.
Imagine Elizabeth I wearing a hanfu because China has the most culture. Or going bear-breasted because the Zulus are dominant.
Spoiler :
It's too bad there will probably never be a Nepalese civ.
Gurkhas and Sherpas would be a lot of fun. I'd love to see a Nepalese Civ.
Anyway, nice touch as it would be, it will never happen because it would destroy the art budget.