As a rule, most blockchain- projects that have collected tens of millions of dollars for ICO, issue tokens on the exchange without real production growth.
What does it mean?
Well, hype gone and the demand gone. If a token/coin does not have real value then they will fall. Out of the few thousands of crypto in coinmarketcap you will find 99% of them are useless. So do not expect much.
The same is going to happen with these IEO hype too.
In my opinion, some tokens is used only during ICOs and after that, none. It has no real use at all, so who will get interested on buying it if it has no usage? Of course none. Once the holders knew that it is useless then they gonna sell it and this cause dump, lowering its value. This is assuming that the token is already listed.