very unlikely, I think It is very difficult for bitcoin to be used as the currency used by a country.
As is known many countries forbid bitcoin because they are concerned with the circulation of bitcoin if used as a means of transaction.
But bitcoin is much better than the state money today because fiat loses its value day by day but bitcoin is getting more valuable day by day. and bitcoin will never die.
Maybe in this year or in the next years its impossible for bitcoin to become the countries currency for it is unstable and not all countries legalize the use of bitcoin. Also the government and banks would disagree in this idea of making bitcoin as the countries currency. But we never know in the near future bitcoin can be or will be our currency.