Edit: Isn't type 99 a 2000s unit?
Not really. Entered service late 90's.
It is basically the same development as ZTZ-98 anyway, the changes between 98 and 99 were not big. ZTZ-98 apparently entered service in 1996, and prototype in 1990.
I think it fits the bill quite well, but ultimately it is up to Eugen. Quite disappointing and unfair to the rest of us though, who thought that something as important and iconic as the 98/96 series couldn't possibly be excluded.