If ICOs funding projects see the day, i think we will see it as a good tool like kickstarter. The number will be reduced, because scammers will not see it as a good business and will turn to the next big fast crypto thing.
This could mean that it can be a good way of getting some money, not as it is right now, but it will be another toll to invest, like trading, lending, etc.
But if ICOs devs don't see it like this and only scam projects will use it, in the middle of next year, ICOs will slowly but surely die.