Demon&Demain:We end it here, Black Mage!
Orchid&Suu:Black Mage, I won't forgive you!
Here are all the 10 commanders promotional videos with Chinese dubbing voice for this Black Mage patch in CMS.
Each commander has its dubber.
However, the official haven't annoucement who they are yet.
In addition, not only did the commanders' video release, there is also a short trailer for the patch, which was the advertisement used in Youtube and Korean TV.
It is added with Chinese dubbing voice as well.
Therefore, we can see that it was paid an effort for the patch in CMS, although the game is no longer popular now in China.