I read an article on Medium which was written by Kaspar Korjus the managing director of e-Residency program https://en.wikipedia.org/wiki/E-residency_of_Estonia
For now it is a proposal that has the potential to benefit both the country and its fast growing community of e-residents. It seems that Estonian government want to exploit the synergy between the blockchain technology and the e-residency program features as of here : https://medium.com/e-residency-blog/welcome-to-the-blockchain-nation-5d9b46c06fd4
Estonia has already started to call itself the blockchain nation.
The coin that the ICO will release will be called estcoin.
You can read more here : https://medium.com/e-residency-blog/estonia-could-offer-estcoins-to-e-residents-a3a5a5d3c894