In 4 years he'd be 38..Doubt very much he'll be boxing then,let alone at the top level.2 years tops i think.
To answer the question ,NO he won't and I don't think he should.. He's lost 1 fight clearly n his whole career and he's fought 8 world class guys on the bounce.. He'll bound back and learn IMHO! He's such a good person and athlete and I really hope he does comeback, I predicted that the super 6 would finish him at the start of it but I was wrong and he done great