While I agree that anyone can say anything and many of these claims are just a hoax, then there is a fair possibility, that someone takes the cryptocurrency to a new level, makes an innovative project, improves the technical solutions etc. If there will bee project, which think out of the box and provide an answer to the issues of the crypto market today, then yes, they will eventually beat Bitcoin too. Bitcoin has a name and credibility, but if there is a truly great idea, then why would it not succeed?