Well, if we go by strict terms, it's not the FC-31 that will enter PLAN service but a derivative of it. So it would be a new fighter but one that draws heavily from an existing design to speed up its development.
Exactly, in exactly the same sense that the J-15 is a new airplane, even though structurally, much of it is identical to the J-11B, or the SU-27 or SU-33 genetically...
So people will infer its a new aircraft, when it actually is a "derivative" aircraft, like the J-31 and the FC-31,,, but make no mistake, this airplane is coming, the people want it, just like the want the J-20.
Just like the Brat longs for the F-22 to be back in production,, for lots of "emotional" reasons, the F-22 is a very strong symbol of and for Freedom to me, but sense I probably won't get that?? I have re-invested SOME, but no all into the F-35...most govts, even the military run on "good feelings" or a good vibe! the FC-31 puts off a "good vibe"!