I don't think one can judge the future's interest in these things at this time. I don't know, but there are a lot of young people who are keenly interested in this stuff, and I'm not saying it's certain, but you never know what people might attempt in the future. Even if there's no real market or interest, it is possible for someone to almost become obsessed with these things, and maybe they'll succeed.
I'd like to think that once the "digital takeover" is complete, these old processes will seem that much more amazing to people and perhaps there will be some kind of a resurgence. Hmm, probably wishful thinking.
I guess as long as black & white panchro materials are obtainable, then color is possible. That is my main concern... I don't want to live in an age where every single color print has come from a printer and a digital file.