Reporting back from my Chinese games experience.
There was a huge 2GB update only for my Chinese Xbox One today. After downloading and installing it, I try to log in and it asked my Xbox Live password again (which should have being stored). I logged in and I see a lot more of BesTV presence.
I was able to add the 2 new games (they are freemium games) to my download list, downloading them right now.
But this update was suppose to allow chinese users to access other regions marketplaces (turning the console region free) but I was not able to change regions, only China is still available. Maybe the update was supposed to allow only disc-based games from other regions, like PS4? Don´t know.
I was not able to access the Chinese Marketplace from my US Xbox, it is still locked.
In other News, PS4 exclusive chinese games got some updates today, changing their titles to english. Will test later if the games have know English in-game too.
EDITED: Yeah, it seems that the update was mean to make the console disc-based region free, as the PS4 is on China. I was able to play US discs on my Chinese Xbox One. But marketplaces are still locked, Chinese Xbox One can access only Chinese marketplace, which is locked elsewhere.