I do not think ICO will disappear and die that easily. I think it will become more popular, because many people are investing their money into ICO. I think ICO will experience a change in terms of sales, law and presentation. Many ICO scams, I think need protection to protect investors from scam.
But because there are so many people investing their money in ICO but they actually didn't get anything back , they're really upset about that and i think they won't do it again because you only invest into something if you actually get profits from it , not losing from it.