Whilst this is the official launch for Mainland China, the console and games have been available via the grey market since 2017 with many already choosing to import from overseas.
So even though this is a limited launch, grey market is still an option for games.
No Switch Lite info revealed today. It is expected that Switch Lite would launch next year at this point.
Also it is currently unclear if the bundled NSMBU Deluxe is a demo ver. or the full ver. of the game. It could be a demo with option to upgrade.
Just like the global version of the Switch, buyers of the Tencent Nintendo Switch will be able to use any region game cards to play games.
However, it does look like online services may be region locked by Tencent. Still waiting on confirmation.