Just a bit of an update. On one of the most reliable of U.K. sites, Agphotographic( run by Matt a subscriber here) there is a notice to the effect that Fuji almost discontinued Fuji Pro 800 in 35mm in 2009 but changed its mind due to customer reaction. However there is no 120 but there is Kodak Portra 800 in both 35mm and 120.

So crisis over