IB's best stuff is when he's loved up or going for it with the political/social commentary. He does all that better than anyone out there imo. The question is whether he wants to as let's face it, he doesn't need to. His legacy and bank balance are secured for life, forever. Shame for the fans who would snap it up.
Doesn't look like the spark was there for more Roses music, between the four members, but times change. Just have to wait and see, got faith they will surprise us. And if they don't, be happy it happened etc.