Bitcoin will stay and its not just about money its a new Technology future the banks have to accept bitcoin or they simply will be out of Business.

Also i think  that many alt coins will not survive but i think ethereum will stay together with bitcoin and stellar and neo are strong ones too.

But im sure the bitcoin will be not some wild imagination out law but will be here for long and banks will accept bitcoin and will finally say Yes bitcoin is good and ready to go to the masses.
Becouse the technology is so great