If Better was the first single, we would know. If they want the stations to play the demo, it means nothing good.
It seems to me that they forbid to play the demo, because the single was meant to be out soon. Something has changed (CD delayed again, new problems etc), single dropped out of schedule, so they allowed to play the demo to keep up the hype for the next few months. In context of the recent tour fuck-ups and comlete lack of info, this scenario is quite possible.
Well, maybe we'll hear something important soon, but... do you honestly believe in good news from GNR? I bet on "everything goes in the right direction, some dates cancelled but GNR stronger than ever, finishing touches on CD so soon is the word" type of stuff...