So my follow up questions would be
The band used to write on the road all the time. Has this changed? If so why?
I'm not Axl, but I can answer that for you.
None of the albums released by GN'R were completely written while on tour. The fact is, they're musicians. If an idea comes to them at home, they probably save it somehow for later. Same thing if it happens at sound check or in a hotel room while on tour.
The band used to play unreleased NEW music live. With the comments that there is a ton of already written music in a vaut and the history of writing new material on the road while touring, is there a possibility of hearing New unreleased music live? If not why?
Well, the answer could be a follow up to your question. Why would they play unreleased songs nobody has heard and debut them that way at this point? What's the purpose?
It made sense in 1991 since the tour started before the albums came out.
It made sense before Chinese came out because so many kept saying there's no new music, there's no finished songs and it's never coming out etc etc etc.
Now? They don't really need to do it just to please some fans posting on message boards who spend too much time reading setlists... That's just my opinion. They don't
have to, I don't know if they want to. That's another question....
So you see, many of your questions you could come up with plausible answers to yourself....
/jarmo