Come on, what a ridiculous argument: CCTV shows an old rejected contender for a now most successful project that was won by another design and you conclude "the Chinese should buy Su-57s; Shenyang is so incompetent and retrograde"!
Shenyang has been doing little but cranking out Flanker clones for the last few decades. Its J-11D project was apparently inferior to the Su-35 in terms of construction, with the only superiority being Chinese electronics.
Back to the topic, it looks like it's a proposal for a navalized J-20. The wings are enlarged compared to the current J-20.
I'll also point out that the picture is stating steam propulsion vs EMALs propulsion; i.e, Chinese heavy drones and AEW&C are not launchable under the present circumstances using steam propulsion but require EMALS to get them airborne.
The J-20, likewise, seems to have changed the wing shape as optimize further for frontal stealth as opposed to rear stealth. More likely, it's an accommodation for carrier storage; the outside shape of the wing is implying that it'd fold, but unlike as with the F-35, the wing extensions don't produce a trapezoidal shape.
The LERX, likewise, resembles the Su-35's LERX more, and there seem to be upper vents suggesting that the J-20 proposal has abandoned the DSI concept for reduced stealth and increased speed.
