Ofcourse, Remember al cryptocurrency are part of ICO before. It was develop by developers who wants to change the old system and by using blockchain life will be easier. So ICO will stay longer and it won't be dead. Just like opening a new business ventures.
strongly agree with you, but in opening a new business and develop it there are two possibilities, if successful then the ICO tokens will be successful and the price is expensive, and if it fails then the tokens are very quiet buyers and it makes it crumble