Soon is a stretch definition when I haven't yet seen any reliable method of raising fund that could replace IEO effective. Sure not every IEO promise back profit but they are mile better than ICO and if some thing want to replace it, they also need to mile better than the current IEO.
IEO projects are better than ICO, why? because we can distinguish IEO from good and bad,
while ICO is very difficult for us to distinguish, so IEO is much better