The odds are good that these governments will make their own coin. Just take a look at whats happening between US and China. The trade war seems to have them competing on edge and now China has announced that they will be pursuing cryptocurrencies more it seems that the US won't let itself get beaten and is also investing time and resources to look into more blockchain projects and solutions.
We don't need more coins, we need legit coins that are used in the real world. Hopefully these governments can provide these, and that they are exchangeable with Bitcoin and other cryptocurrencies.