As I wrote on Twitter, this is at Huangdicun which is the carrier test and training base (the one with the ski jumps, arresting gear, and catapults on site), as specified by the CASI document... not the Wuhan concrete carrier.
The folding wings means it can only be J-XY/J-35, not FC-31.
And next to it are two J-15s.
J-XYs/J-35s and J-15s at Huangdicun are of course entirely expected given it's a carrier test/training base and a naval air station overall.
The question is whether those are real aircraft or simply elaborate mockups with folding wings... at the moment I think the possibility of them (all four aircraft in the picture) being real is certainly not low, in fact it might even be high.
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