maybe, but if technology continues to update, of course it will be difficult, because if there is a new breakthrough, of course people will continue to race to produce good results,
so people will continue to make ico until there is no need to update again.
so I think ico will continue.
Maybe there will be other ways of crowdfunding and if so, it might be an advance process than ICO but same though it will be same with ICO in an advance process.