Hey there, Hi there, Ho there,
if the release of the fireworks soundtrack really depends on guest demand I don't see this happening. During my recent visit to WDW I visited City Halls several times to place my request for a soundtrack release with some CM there. Everytime I encountered a different CM and with the exception of my last try I always received the same, totally wrong answer: "We can't take down your request as WDW's policy is never to release musical material from a new show or similar, the soundtrack of Fantasy in the Sky fireworks was only released because the show was running so long already". When I pointed out that this is not quiet correct and that I would like to place my request regardless of this policy which I questioned anyway they said all they could do is calling in a manager. The later they said with a clear undertone of "the manager will then explain the same to you, you stupid, stupid guest". I doubt that many normal guests who might be interested the soundtrack go to the length necessary to put in the request.
Yours
Dirk