Well, Fuji is still making Provia and Velvia 100 in 4x5 and 8x10, so it's not like everything is going out the door. And according to Fuji, Velvia 100F was introduced in 2003, so I'm guessing that Velvia 100 was supposed to be the replacement, anyways.
And Velvia 50 apparently is still being manufactured in roll film format.
Really, just how much of a market does LF E-6 command, anyways? Not a lot. Kodak dropped E-6 entirely. I had thought they would have whittled it down to 100G, but kept it in production.
Dangit, I always hate stuff like this, although I know it's coming. It's like my feet keep getting closer to the edge of a cliff.