Korea gov is friendly with USA gov so I think they will just control ICO. not ban it. many good ICO from USA still coming
Sooner or later, a govt will regulate ICOs not ban at all, because a new start up will grow with ICO model as the fund raising instead of borrowing money from banks. Govt can get benefit by taxing ICos and new start ups will be a drad new employments in the field. I think no reasons to ban ICO at all