They will have redone nothing. Nowadays they're happy to release stuff of demo quality with a "live feel". If I wanted a live feel I'd buy a live album. They always release one from every tour anyway... making an album is a chance to create a beautiful jewel of perfection. The songs should sound as perfect as they can. Instead they release stuff with mistakes still present, sloppy vocals, poor guitar tones and instruments out of time. It's like Kevin shirley just presses the go button then they release the result. My favourite band just keep on letting me down...