First of all, I know this isn't the new album thread and I'm sorry for continuing this shit
Do you think he'll be touring and releasing music in his 70s? I don't think he has 5 years to waste on a song, if he treats it the same as Hardschool, Perhaps, etc - a 'fresh' addition for the next couple years of touring.
I'd guess the 'new material they could come up with' is Duff songs and covers, for the most part. Maybe we actually get a few new songs from Axl, and maybe he really is holding onto some gems for an album, but I doubt it...