@creativeblue I loved the article. It is simple and still explaining the major Differences b/w ICO &Security tokens. Thanks, I didn't know it before.
So the question was is the future of ICO is Threatened by security tokens?
Yes maybe in future long-run security token may rise up and will have more control over blockchain. but May ICO will improve also to challenge the SecuritytToken. Who knows that. So Future is Full of possibilities. so be one of them.

Thank you,
Regards,
Dayyan Khan