I cant predict or say when the ICOs will die because their performances and services in this business it good enough and okay to the investors and they can more catch up a newbie because of them name in the business is very well known in this industry.
yeah we never know it, as long as icos have interested to invest i think icos will still defends, but i think icos is not for newbie not recomended, because more than 65% icos is fails thats why i think newbie must learn first about what is icos and all about project