Maybe it is the hotly anticipated Tali H500 Hexakopter (too?) In black type.The following images are at iUAS emerged:
The engines also look new and the propellers have a sunken selbstsichernte mother.
It is also a concept image with twice the propeller speed (12 engines, Dodekakopter)to see:
Whether this monster is built is questionable.
Walkera has the Tali-Dodekakopter image hidden in white on their website: