Retire...at this point of his career, he'll probably be used as a stepping stone for some up and comers at 140 or 147.
The only fights that make sense are either Marquez (for the money) or Bradley (for the belt), but i think both would be wrong. Hatton can no longer make the weight to fight Bradley at LWW and Marquez fight would only be for the money, something which ricky has not prided his career on imo. Best option is to call it a day. Its no disgrace to be beaten by two of the greatest fighters of the modern era. his fans still love and repect him, even if the yanks didnt get him as us Brits did.
Honestly the guy needs to retire and enjoy his money and family he earned it. He simply can't take a punch anymore.