The Bunker Group
This recent Naval News article advances the likelihood the FC-31 will be the PLAN’s future carrier jet, not the J-20. As the article points out this jet will probably gain weight due to necessary naval modifications. Both it and the KJ-600 were seen at the concrete carrier in Wuhan. Still lots of uncertainty wrt stealth and kinematic performance.
First Sighting Of New Stealth Fighter For Chinese Navy's Aircraft Carriers - Naval News
The Chinese Navy is massively expanding its fleet, with at least three aircraft carriers at its vanguard. Yet these lack low-observable fighters. But that is expected to change. A new image offers the first look at the new stealthy fighter.