Well, finally my prediction since 2016 have already occurred. It was only my observation but since there are several meetings across the world made by the  banks and government officials I cam up with the conclusion that it will be only a matter of time that a certain country will have its own cryptocurrency . It was first idealized by China when they called up all Asian countries to create one currency that will be used among all countries in Asia but that was not realized. Then, at last Sweden was the first country to do it.