I don't think anyone can predict the future of bitcoin either good or bad, but I am sure if the future of bitcoin will be good because there are still many people who believe and use bitcoin for their investment in the future so it is likely that the future of bitcoin will be bright someday.
It has to be good and in fact now it will grow at much faster pace as if more and more people do join this space it will help to grow faster as demand will rise and thus better for the community . Also depend on many world countries if they can legalises it .
in fact, until now we see that the development of crypto technology continues, and of course reap the pros and cons of various parties. if there are a lot of scammers, maybe it will end badly, but if this has been developed to become more advanced, and good, I think this can be a very good thing in the future.
Imagine the replacement of ICO with STO, this reflect how cryptocurrency will be in the future with much more security features held on investors. No more than 2 to 3 years, crypto industry will develop above our expectation that we can use it as simply as currency.