ICO will always stay because big investors believe that investing on ICO is worthy and the possibility to earn huge profit is expected. I don't believe that ICO in 2018 will die as long as the market will not be manipulated.
has been running for four months in 2018 and proves that more and more ICOs come up with promising offers that have real goals. ICO will get better and will grow along with bitcoin prices that start growing in April and will start to increase in the coming months.