But do we have any evidence on a Fleetwoods upgrade to lets say J-10AG standard? AFAIK we have only a single image of one aircraft and not even a certain detail - like a grey radome - to differ between A and AG.
I’m not even sure that they follow the grey redome rule for J-10A/S. The newer J-10S all have AESA but the dome color is still black.
I wonder if something similar is happening with the older J-11B. Radome stays the same but radar has been upgraded. You can’t really tell unless you open them up.