It was inevitable. Lisk had 2 clones announced before it even launched.
Ether got cloned by accident without anyone even realising it would happen (I don't mean Expanse).
Expect at least 10 more.
Plus there are all the genuine competitors - Synereo may launch in our lifetimes (if we are lucky) and with all the ether craziness who knows when Akasha will launch.
Forgot about Decent they are having an ICO in September.
Typical crypto - everybody has to do the same thing once they smell success.
BTW I didn't get a chance to thank you for your "Dummies guide to mining" - got me up an running really quickly.