That's what they said about vinyl, though, when cassette tapes ,and then later, CD's came out, but vinyl is still around and not going anywhere anytime soon.
As long as there are people who enjoy using film, there will always be somebody who will make it, and somebody who will process it. Even if the overall numbers are statistically low, with the internet and the worldwide market it allows, a small percentage of the whole population constitutes a relatively large consumer base.