I think you have to divide analog into 2 camps:
1) Custom processesóLots of threads here on APUG and elsewhere. Will be seen as more unique and valuable. Will survive indefinitely.
2) Roll and cartridge film industrial processesóDepends on pure volume at affordable prices to stay viable. Industrial production requires industrial consumption. Its survival will almost entirely depend on scanning to enable a broad enough market for the coating lines to keep their revenues viably high enough. The home darkroom crowd and the few pro lab left cannot sustain the volume to keep a single supplier in the market unless there is innovation and rationalization within the industry. Vertical integration of production, materials, and distribution will be key. We'll know well before 2020.