No, they won't. As Dead said, there are some out there which have been fortunate enough to survive, but new forums don't stand a chance. and the reality is, those big ones that are still alive will most likely die eventually. I can't believe I'm saying this, but even people in their 20s probably have no idea what a forum is simply because they have been phased out so much. I was a kid when forums were new and people didn't know what they were. It feels weird being alive for the birth and death of forums, ngl.
but going back to what I was saying, the kids nowadays want INSTANT communication and gratification. Forums were never meant for that, which imo is what made them great.