If there is a Polaroid film that you love, that has been, or is going to be discontinued, you should write to Fuji to ask that the add it to their line of instant films. And you should mention what you use it for, if you manipulate it or make transfers, so that their incarnation has the same properties.
I know that their corporate plans are that they are going to be the last ones standing with film. They are still putting R&D into it. So it wouldn't hurt for them to hear from film users who still want to buy particular instant films.