I might be totaly wrong but my subjective feeling is that pretty soon the market will be overloaded with low quality coins / tokens promoting another variation of any new blockchain or anything else that already exist in some other way. Only strongest will survive. IMO it is almost impossible to evaluate the full potential of the very new coin / platform / project / whatever, because no one tried it. Usualy you also don't have any access to the full code of the project so you also can't try to evapuate it from the technical side. ICOs are risky and thats why they are bringing so much profit.