There is one very important thing to bear in mind here... It is the fact that blockchain and Cryptocurrencies are still in it's baby stage but just take a look around and see the attention that it is attracting, this shows that the future is very bright.
no one knows for sure the development of crypto currencies and blockchain all possibilities can happen and with the development of time and technology and the era and crypto currency created and the existence of blockchain may be well developed and rapidly going forward