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 also think that this year the ICO should reach a new qualitative level. Simply investors become more experienced, this part of the market is also developing and no one will repeat the same mistakes.
I also hope that on the platform of the new Ethereum Zero coin, ICO will also be conducted and they will also differ from the previous ones for the better.