I don't think they'll die as long as we keep using them. There's even younger people who still are interested in forums over chat clients. I recently seen that people are asking for a forum feature on Root, and every time I see this I mention they should make their own forum and use Root as a way to instantly talk with their community. A few people agreed and I know most people who use the app are about 10 years younger than me and I'm in my 30s. I hope we can see a renaissance of forums again soon.