Google Play Store is banned in China, it’s not up to me.
What I could do is target another Store (for example Huawei AppGallery), but right now it’s not planned as I don’t have time to support another Store.
Nomad is a one-man project and handling another Store is more hassle than what people thinks.
Maybe in the future though!
If you don’t want to open another outside Store to make Chinese user buy the app,could you please open a way to buy it on your own website?