I suppose that ICOs in 2018 will move to a new level. The amount of project will be reduced, but the quality should be improved for sure. Moreover I guess that in 2018 ETH will share the place of the top ICO platform with NEM, NEO and other projects.
I agree to this, I don't think ICO's will die and just vanished or become obsolete if ever there will be changes that would more likely helps it to adapt, it is true that the amount of the projects may be reduced but it is much better if the quality of these project are improved thus giving more credibilities to ICO.