Amen, MisterRob. First, Mick Foley's active wrestling career is over. He may do a match once every 6 months, but, with the condition his body is in, that is the limits of his abilities physically. TNA would not appeal to him that way. He won't consider TNA as a place to continue his active wrestling career. Then, we must consider his current job, announcing. From all indications, Mick Foley enjoys announcing, he is good at it, and his only major beef is Vince trying to control exactly what he is going to say. That is the kind of problem that a long meeting with Vince McMahon can clear up. Mick Foley is certainly a WWE Hall of Famer, and, while McMahon may not do everything he suggests, he will at least listen. Backstage interference with announcers is hardly news. There have been news blips on this very website from the past few years saying that McMahon has been riding Jim Ross and Michael Cole too...
Basically, what I am trying to say, is Mick Foley, if he decides he is unhappy announcing, still has little motivation to go to TNA. He doesn't need them to continue wrestling, and he certainly gets paid better to announce on Smackdown than he would on Impact. I could see someone like Hardcore Holly going to TNA to try to extend his career a few more years, but Foley is past that. TNA cannot offer Mick Foley anything of real value. So, I will believe rumors about Mick Foley ditching the WWE for TNA when I see him appear on TNA programming. Until then, I am not buying what the Sun is selling.