There will be all these "hot-air" projects for as long as there is people willing to throw their money after them.. This is the wild west, and is's beginning to look more and more like casino gambling...I agree that a lot of the alts will be gone in the future, but it's going to take time, not going to happen while the cryptos are hot... Just think what will happen if the whole crypto market takes a giant dip, and many people loose basically all their money...
As soon as people realize just how risky all these coins are, a lot of them will collapse..