The future of ICOs are bleak because ethereum is having a big problem next year--that is, the difficulty bomb. Of course, as many ICOs are ERC20 based, it is also greatly affected. I think that the market for ICO is already done.
Yes, perhaps the problems associated with ethereum will affect all projects using the ether platform, but this does not mean that these problems cannot be solved, on the contrary, I believe that this will serve to consolidate the project and the community.