Me personally, I think Velvia/Provia are popular enough that chemistry and processing will continue to be made for E-6/CR-56 for some time - hopefully longer than 18 months!! After all, Fuji didn't reintroduce Velvia 50 for no reason - there's a market there for it so they reformulated it when one or more of the old raw materials used to make the original 50 ISO Velvia were no longer available.

ME Super