There was never going to be a rematch ......
1) Calzaghe clearly won the fight; only a biased American judge, with a history of poor scoring, gave it to Hopkins.
2) To the best of my recollection, Calzaghe never gave rematches, I think he only fought one opponent twice. He prefered to move on to fresh, new and exciting challenges.
3) He was nearing retirement and Calzaghe didn't want to miss out on fighting Jones, by wasting time rehashing old ground.
4) It was a dull fight, and I doubt if anyone was prepared to spend money on watching it all over again.