We don’t know when Sanhok will come to PubG Mobile, but it is confirmed that it will be added to the game at some point. Sano is a tropical island map that was added to the PC version of PubG in 2018.
The map is smaller than the other two maps in PubG (Erangel and Miramar), and it is also the only map that has a day/night cycle.
Sanhok was added to PubG Mobile in the 0.11.0 update, which was released on May 15, 2018.
Sanhok will likely be added to PubG Mobile in the next major update, which is expected to be released sometime in the summer of 2018.
However, we don’t know when Sanok will be added to PubG Mobile, so we’ll wait and see.