In their
press release Aksys doesn't specify if the soundtrack is going to be a CD or digital, so therefore other places that spread the news don't know it either. (
siliconera,
joystiq)
Amazon lists release date as December 31 (
PS3|
PS4) but it could be just a temporary date, as Aksys simply said - holiday season.
As of right now Limited Edition is scheduled for North America only, no word about Europe.