He is playing in a Beckham charity match on the 14th Nov although that would not require anything like Championship match fitness. I assume the reason he has not retired is because he still wants another challenge. The fact that he has not reappeared in the USA, Middle or Far East for big bucks...
Ashley Cole is a free agent. Ticks the quality box but maybe not fitness, he could be past it. Maybe an option for a short term contract. I wonder if he has links with BZ & CH?