His sketch shows a Kuznetsov-hull with a new Chinese island, a flat deck and three catapults. I think, this is very very realistic.
It shows the smallest possible step with the greatest possible progress. And this fully corresponds to the Chinese way of doing things.
How "realistic" or not isn't necessarily the matter up for debate, because the overall configuration of the hull and the catapults etc is not unrealistic and it "corresponds" with what we know about what 002 will look like.
But I hope you realize there is a difference between making a doodle which happens to fit with what we know about what 002 looks like, versus having a sketch, diagram of CGI about what the 002 will actually look like in terms of more subtle design features and differences like configuration and size of elevators and catapults, configuration and design and size of the island, the exact arrangement of flight deck etc.
For example I can sketch a depiction of 002 as well which can meet all the current criteria we have for what 002 will look like, but that doesn't mean my sketch will be representative of what 002 will actually look like.
similarly I do not think that sketch by fzgfzy is supposed to represent what 002 will
actually look like but is merely just a sketch that
fulfills key parameters about what 002 will likely have.