Serbia last month announced that bought 9 tons of gold worth about 1.4 billion!!!!!! dollars. It wasn't alone at this investment. Also Russia, Poland and Hungary bought gold for investment. They told that they invested there for security reason as they do not trust paper money.
We can say that's good news for cryptocoins as the government do not trust paper money and invest somewhere else.
I am pretty sure that in the future will invest at cryptocoins.
Let's see