Don't know if has been mentioned before but another use of film that is not going away soon is film for aerial photography. There is probably a lot of that being used in the world although not on the level of that used by the movie industry. It is possible to simply repackage that film for use in still cameras.
Freestyle has just received some Rollei Superpan 200 that is repackaged Agfa Aerial film. It is on a polyester base which is important to me.