It seems to me that China is a synonym for everything innovative and experimental. And i don't doubt they'll be the first to adopt crypto fully
They won't adopt cryptocurrency that is decentralised. China's big weakness is that it still has capital controls. And it has capital controls because chinese people don't trust their own government and try to move money out the first chance they get.
Unless they lift capital controls, they won't adopt cryptocurrency, and the yuan won't become a global currency either.