To answer the thread question... Yes, I do think Jones is serious that he would move to 166 to fight Oscar.

However, Roy knows as well as anyone that there is no way in hell that Oscar would ever fight him. Oscar doesn't need Roy to make a lot of money, so why would Oscar move all the way to 166 and fight a much bigger guy, when he can make more money fighting at a more comfortable weight against smaller guys like Floyd?

Roy needs to focus his time on trying to get the Hopkins/Calzaghe winner to face him.