I haven't heard that, but when Black Ice was released I wondered if that would be it. After the tour is over will they announce that they are going to retire? I don't know, but it's possible. They have been around a long time and have plenty of money, in fact I've heard Malcom Young say they have just continued for the last few years because of thier love for the fans, but, they are getting up there in years, have given us a lot of great music, and performed a lot of shows, so I could understand. I'd hate to see that happen, but I'd understand, ya know?
Brian is getting up with years and I would completely understand if he would want to retire. The touring and the singing has taken its toll. He cannot hit the notes like he used to and it would not bother me if they would decide on getting another singer. I was not impressed with Black Ice and maybe somebody new could put a spark back into their music.