1. Dubai (Encash) - Couldn't find anything about Encash
2. Venezuela (Petro) - Launched in February 2018, is a cryptocurrency issued by the government of Venezuela. As of August 2018 it does not appear to be used as a currency. Source:
https://en.wikipedia.org/wiki/Petro_(cryptocurrency)3. Estonia (Estcoin) - Estcoin is a mooted national cryptocurrency, devised by the Government of Estonia in August 2017. In June 2018, amid criticism from banking authorities, as it will be restricted to individuals within the Estonia e-Residency program, it cannot be exchanged freely and thus technically doesn't qualify as a cryptocurrency. Source:
4. Russia (cryptoruble) - This will be a crypto, to say it better it will be a stable coin. "The CryptoRuble is a digital currency currently in development, commissioned by Russian President Vladimir Putin. It likely won't be a cryptocurrency in the way that Bitcoin or Ethereum are, as it would be issued by the government and not mined. The value of the CryptoRuble is identical to the value of a regular ruble." Source:
https://www.investopedia.com/terms/c/cryptoruble.asp5. Sweden (e-krona) - As I found out they are making digital currency, but there's no mentioning blockchain in few articles I have read. Anyway this is a pilot project and we will see will they do more with this or not.
6. Japan (j-coin) - Digital wallet. "In their bid to embrace a cashless or electronics payment system, Japan’s Mizuho Financial Group along with sixty other banking organizations have together launched a digital wallet known as the J Coin Pay." Source:
https://medium.com/cpayfoundation/what-is-jcoin-and-why-is-it-so-popular-in-japan-44d98f382083We will have to wait longer to see countries adopting blockchain. But as they are thinking what to do, decentralized projects are gaining popularity among people in the world. I think it will be a big war between governments and banks that wish controlled currencies with decentralized coins that will have support among people.