Just got this from a friend of mine.......
Further reading on the Fuji web page reveals this:
"Availability - The new Fujichrome Velvia 100 is designed to replace the current Velvia 50 product line. Initial shipments of the new Velvia 100 are scheduled for late spring 2005. It is anticipated that Velvia 50 will be available for the balance of 2005. Fujifilm intends to make the transition from Velvia 50 to the new Velvia 100 as smooth as possible for professional photographers by having both Velvia products available simultaneously in 2005 to allow photographers time to test the new product."
Time to start stocking the Fridge.