All former Mr. Olympia, after retirement, shrink to the shadow of their former self. With Ronnie Coleman's retirement it should be interesting to see how he'll 'shrink'. 
this is a stupid thread...I am sure that you don't expect him to keep his current "stack" and eating habits for ever right?
and even if he did, father time will counter balance everything and give diminished returns
lol..you don't think than an 18y/o girl will stay that young and fresh looking forever do you?