I know I will disappoint those of you hoping for China, but, sadly, it will not be on the map. In terms of scope, the map will roughly match that of CK2.
This goes for the entire De Jure title hierarchy, so there are several new kingdoms and duchies present. When we started to update the map for CK3, we knew that we wanted to take a pass at everything, do additional research, and update the different areas accordingly. CK2 had several parts of the map that was outdated, and to be frank, a bit underdeveloped.
I would like to take a moment to talk about the map of Crusader Kings 3, what the vision for the map is, and how it is different from Crusader Kings 2.