Rock Or Bust, the next album from AC/DC, is confirmed for a December 2 release. The group's first album without Malcolm Young features 11 tracks and was recorded rapidly during sessions in Vancouver this past spring under the production guidance of Brendan O'Brien. The band has also announced that tour plans are being drawn upf for a 2015 world trek that will introduce fans to Steve Young, Malcolm's nephew, as the group's new rhythm guitarist. As in the past, the group declined to offer any specifics about the medical condition that has rendered Malcolm Young unable to play, but shortly after the announcementYoung's family confirmed that the 61 year-old guitarist is suffering from dementia. The Sydney Morning Herald had quoted a source as telling them that, 'If you were in the room with him and walked out, then came back one minute later, he wouldn't remember who you are.'