We also can see the full-height fuselage going right to and beyond the tail, more suitable for a single-engine plane. And weird (for a fighter plane) straight line formed by nosecone and the cockpit(maybe cartoonish depiction, though). No readily apparent shape of intakes. Straight delta.
I am almost sure this is just a picture and should be treated as such. Not necessarily, of course, but at the very least this shape isn't something most of us expect of the new plane.
If this cartoon emerged in absence of any context and in absence of years of gradually compounding evidence that J-XY will be a FC-31 derived fighter (with basically outright confirmation being the mockup on the Wuhan carrier mockup), then I would agree with you that this cartoon shouldn't have too much read into it.
But given we do have years of context and gradually compounding evidence and that this cartoon was referenced directly in relation to a new upcoming carrier based fighter straight from the horse's mouth, IMO the only reasonable question we can ask is: "which of the known upcoming carrier aircraft can it plausibly be depicting"?