The video says: "Y-20A is here (A有了), Y-20B is here (B有了), YY-20 is here (油有了). Everything that should be here will be here. (该有的都会有)".
There's also this caption by the PLA's official Weibo account who posted that video:
In addition, I don't think that the KJ-2000 would have/deserve this much fanfare at this point in time, alongside given how the clip is exclusively about the Y-20 family.