Do you know Max Keizer? Check https://www.publish0x.com/coinbuzz/he-predicts-death-altcoins-and-hard-forks-xmmode ¿Do you think quality of altcoins projects that have emerged in recent times has improved? 
There many self proclaimed crypto experts and analysts. It would be good to hear them all if they provide their assumptions with facts and reference. Hear of all and decide on your own. But if they are just making prophecies than there's zero credibility for them.