I think that only options are B-hop & BCD (not that i think they could beat him) but cant see joe fighting anyone else.

I think he will fight one more time at millenium stadium as a send off & it will prob be b-hop 2 as he has said he will travel over & its defo a fight that sells what with b-hops trash talkin.

I personally think he should retire, as there will always be another challenge it never ends, do what lennox did get out & stay out.