The latest news is that the US government is look closely at Bitcoin. A number of governments such as Russia and China are also planning to issue their own digital currencies. They clearly see a financial threat from Bitcoin.
What do you think? Can governments kill Bitcoin and replace it with their own digital/crypto currency?
Most likely no they can't kill bitcoin. Remember darknet, torrent and so on, all they can do is try to block these sources from us, but how can you block something which is decentralized, doesn't belong to no one, and has no boss or CEO

I guess most of Governments will try to settle a regulation around bitcoin and crypto market. Governments live by principle "If we can not forbid it, let's try to be head of it"
Not sure if crypto issued by countries will become that popular in near future, right now i know only one popular coin which is backed by oil - elpetro, cryptocurrencies which are backed by real product most likely could make it to stay on the market for a long time.