This is pretty specific but I had an idea in the context of a Nationalist win in China where the KMT builds a constructed capital for China and fittingly rename a centrally located city such as either Xi’an or Luoyang, which have both historically been capitals, to 中京 (Zhōngjīng - central capital). What are some realistic ways to make this happen? Is this something that the KMT would ever actually consider doing in all likelihood? What would the population of an alternate Chinese capital be? How much smaller would Beijing (probably back to being called Beiping ITTL) be without being the center of the Chinese bureaucracy?