Btw, do yous guys think this whole mistery vibe will help with the promotion of the album?
Certainly do. If they want to string out the suspense as long as possible and make sure the maximum number of potential buyers hear about it and have their interest piqued in advance of the release. The diehard fans, who are poring over every scrap of evidence and speculating about a new album via music forums are going to buy anyway. Think ninja.