Have you heard of ICOs with multiple rounds? Like they raise a certain amount of money now, use that money for primary aims and goals, and then a few months/years down the line (as part of their original plan) launch a second round to fund additional goals and further project development? Just wondering if this is a thing, if so please provide me with some links to projects that have done so.
That defeats the faith in the investors. In the very least if they are planning to do another round of ico that means that the initial investors will loose their stake proportion in the coin and supply will increase .
Actually something like multiple round for ICO is bad idea. A lot of factors can be reason like what you said and other else. Like when investor must wait longer to sell their tokens. Maybe it is better if ICO really commit with the time, if not reach target, just accept if the project failed and refund investor's money. It is better than force to something like multiple round of ICO.