They also humorously suggested it would be a good stand in for KF-21 in DACT if you attach some weapons to pylons underneath it. It may be humorous but it's also very true: if you're a country who has beef with a country next door and the guys next door buy KF-21 then you can always one up them by buying J-35AE.2. The J-35A also serves as an aggressor aircraft, simulating the large numbers of F-35 in China's vicinity during BVR and close-range air combat training.
Recall this:
Shenyang FC-31 / J-31 Fighter Demonstrator
Why the heck are they bothering with a PLAN land based variant? Just make that, the PLAAF variant, and the export variant the same. He said he was guessing the variants, could be something else. But yeah, a land based variant doesn't make sense.
www.sinodefenceforum.com
This "four ways to eat a chicken" also came up again in this stream. Yankee said it was true there were plans many years ago for the four variants (and Yankee specifically said it was air force, carrier-based, export and land based naval), but those talks of four variants were very much pie in the sky dreams over at SAC and does not strongly correlate with whatever variants that will appear as the final result. The direction of the project was very much determined by PLA requirements and PLAN and PLAAF buy in came in at much later on in the project.