Venezuela launched their own cryptocurrency call Petro time ago and i heard that many big countries are planning to do the same. The governments are more open with cryptocurrencies now and i think this is a good signal.
So far it is not yet in the Coinmarketcap, it will be very interesting if we are going to have one coin creating by one country that makes it in the market list like Coingecko and Coinmarketcap, and many countries will follow if these coins make it at least in the top 50 if this happens expect more countries will follow and this could become a new trend.