Quoted from PinKopf:Since the initial song selection has no impact on gameplay, all they need to do is create new song selection images for the Start screen, and call it done. Nothing gameplay or insert wise required. Frankly I would like more songs that I won't hear during any modes.
Totally with you on that request, based on a comment at a talk by design team ages ago they may have more "approved" songs than are actually on the machine. Hope they will get added!