Nope, i don't think that the ICO will end in 2018. ICO is the place where many people get their huge profit. But in some county's ico will get ban or regulated. For example, Russia in summer maybe will regulate ICO.
Currently according to my observations on the market most of the ICO projects after the completion of selling tokens traded on the trading floor are getting the support of the community and increase the value a lot. I think 2018 will be a very strong year for ICO projects. Evaluate and carefully study the project you want to participate in because the fraudulent ICO projects are also in existence.