There is lot of old coin gonna be useless if they dont evolve to handle current trend and tech, most likely they wont, changing protocol need to rewrite from beginning so these coin gonna be forgotten and pumper likely they will create new coin
Only those projects that have an important role in the market remain while the rest will collapse and die. Might it happen to XRP or not, at least we are prepared about it and take action before it happens. If we are a long-term investor we make sure that we are not investing low-value or shit coins and much more not to keep hyped coins as no doubt that these projects will die first before Bitcoin and ETH dies. That is why we should also vigilant and check our portfolio from time to time so we are aware about the situation of our investment.