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 strongly agree with you, in the future to come after this wave ends everything will be back to normal even with new technological developments, related to the NEO will be more ICO based on it and right in the future will be divided 2.