It must be, but in the developing state.
My friend said firstly in the sierra.com there was info about KQ8 in the classic P&C quest style, probably with screenshots. It was somewhere in 1997-1998 years. And then Roberta Williams said that marketers argued her and all Sierra’s guys that they need to create KQ in the 3D style, because 2D was dead.
So old KQ fans, I think, must know some info about it…