I don't think any country will create a fully public, P2P, blockchain-based cryptocurrency. Instead they will create currencies on blockchain platforms that are permissioned and that can be controlled.
This would probably happen, the government wants the full control over a cryptocurrency. They might make a centralized coin and this would be used and be recognized as a national coin. Due to an ever increasing demand of crypto, surely tge government will take action on how to do things well. There is no doubt that digital currency will be soon taking the lead in tge market place.