I have not seen any comments from Apple about it, but the China Apple Store is showing a keyboard for the new Macbook Pro which has a number of different markings than the normal US keyboard. Also the Hong Kong store lists a new keyboard -- "Chinese - Pinyin" -- in addition to the usual English International when you configure a new Macbook Pro.
Update Jan 12, 2017: This keyboard is now offered with the MacBook Pro in the online US Apple store.
My tests indicate this new keyboard reflects the way the Sierra Pinyin - Simplified Input Source works when the option to switch back to US via Caps Lock has been activated.
Update Jan 12, 2017: This keyboard is now offered with the MacBook Pro in the online US Apple store.
My tests indicate this new keyboard reflects the way the Sierra Pinyin - Simplified Input Source works when the option to switch back to US via Caps Lock has been activated.