I think 2019 will be a year for this year's growing and starting ICOs. Next year would be a year of useless and even scam ICOs due to popularity of its potential as a business and in the market. Most will use it as another front having a nice platform and objectives leaving only scammed investors and hopeful participants. Yet, 2019 will be a huge year for the world of cryptocurrency, a year for using and implementing crypto as a primary mode of payment, and a year for platforms' objectives to take place and action.
2018 and 2019 should be a fun year for all the people that are into ICO's. The amount of potential investors is huge.