"U.S. is the only first tier country in military aviation. China, Russia, and Europe are in the second tier and it took China a lot of effort to catch up to the second tier. Chinese civilian aviation still needs work."
I suppose the naval fighter is designed for EMALS operations and therefore will come online aboard the EMALS equipped carrier ? So, the J-16 series would be a limited production run reserved for the Ski-ramp carriers. Assuming the two different carriers be operational by 2030s, we would be seeing two different carrier borne fighter jets by then. So... the J-XY naval fighter would be No-STOVL/VTOL/STOL fighter jet, possibly featuring WS-19 engines ( don't pounce on me, it's just a suggestion) and by virtue of that, would be a medium weight fighter jet. So a good peer, sizewise, of F/A-18 and Mig-29.
As Scchwerter_ and ougoah said...a derivative of FC-31 !?
I shudder to even think about it. That would be a big ouch.Not because FC-31 is a bad platform BUT because the news associated with the platform so far hasn't been so uplifting. I dearly hope that it is an entirely honest clean sheet design. Could even be a compact J-20 and i'd still be smiling. I think the fighter would be a J-20 sibling. It is relatively a safer bet over the FC-31 as the J-20s are actively being produced and several subsystems could be common with both the versions.
Also, 2020 is just a month or so away.