From the firmware point of view, the name is EMUI 8.2, and the entire system does not seem to have too many native Android elements. Google has just added gesture gestures to the full screen in Android P. Huawei does not seem to have followed suit.
As for why China will launch a new generation of EMUI, this will depend on when the next heavyweight new machine will be available. If no accident occurs, it should be released in September. At that time, the Mate series will have new product updates.