These type of rumours always passes on and also most of the peoples buy bitcoins hearing such news. We can't really assume that this is a fake news until it is been declared from any of the official source. Russia is a developing nation which has already shown huge growth in terms of security, finances, etc so expecting something similar from them can be expected by the community.

This might not surely be a news which would be relied upon. Also not only Russia but also most of other countries are not showing good enough growth towards expecting cryptocurrencies into day-to-day transactions. We can always have faith and expect something good coming towards us.