Depends how popular you are and how much revenue you generate. With Chisora he still generates income so is still given the big fights and some that he can win. With AJ and his 4 losses. I can imagine Hearn will artificially maintain his career by putting him in with a few stiffs like he did after the Usyk losses. To maintain him as a going concern and have another crack at a title in 2 years time. AJ never becomes that journeyman type of guy. He has earned way too much and his ego is bigger than his love for boxing. I would say he retires after 5-6 losses. He retires on something like 32 wins and 6 losses.
All depends on what approach Hearn and AJ takes. He could choose to take another 4 lower level HWs over 2 years and only step back up again then which is when he loses again Or he may only be given 2 easy ones then loses 1-2 and retires as 30-5 or 30-6 record. It’s all down to Hearn and AJ. He is definitely finished at the highest level after that though.
I wonder if AJ will get an easy comeback opponent in the spring and then Tyson Fury vs AJ can be arranged next summer. Even if Fury were to lose again to Usyk, the fight between Fury and AJ can still be built up to be a huge event. AJ has to go home and watch the fight again and then he has to work on his defensive. I've never seen him so open before with his chin up in the air...?