I didn´t agree with ****. You are delusional if you think that a 52 year old man can compete with anyone at world level. I would maybe entertain the idea if Ike looked good in his training footage, or if he was actually an active boxer winning fights. But he hasn´t fought since 1999 and is now training in some novice gym. Even Firat Arslan had to stop fighting world class guys once he hit 50. He simply was physically unable to compete. Ike might be able to beat Oliver McCall tho.
Ike is a genetic freak. Of course, the hypothetical comeback assumes he finds a promoter and gets trained. The pool of 'world-level' fighters who spend their time mopping the canvas with their bodies in the current heavyweight division is large enough.
If AJ is so bad why is your hero Luke Tyson Fury reluctant to get into the ring with him? After all if he is as useless as you think it will be easy money. Perhaps he fears AJ will knock him out senseless?