You need to think whether the ICO will end up trading at more then the starting point( or offering price), or it will be trading lower, that's the question you should be asking yourself as most of the people won't wait for the project to come out unless they are really connected to the project's idea, I assume it's not the case.
Perfect, if hold the coins after the coin launches then we find the marketplace supply has been reduced and we can see the token price up for sure. This has been done by the investors and project holders only. If they did not sell the tokens to make the money out it.
Those coins will show the marketplace value for sure in some months.
May be you guys can find the value as more than 5 USD for the concern tokens.