Any new currency or "coin" that a country develops completely misses the mark, and is literally no better vs Bitcoin than their standard currency.
Where can you follow design of these initiatives?
Could a state actor DDoS another state's crypto, or will these just be centralized systems with just the crypto moniker?
Will Libra make it?
I assume they're keeping their designs under wraps for now, but I haven't really taken a deep look. There is some info available though:
* The Chinese Central Bank has filed over 80 patents relating to CryptoYuan, which can be checked out - https://digitalchamber.org/pboc-patent-repository/
* The European Central Bank released a report in October - https://www.ecb.europa.eu/pub/pdf/other/Report_on_a_digital_...
* The Federal Reserve is apparently still just researching - https://www.federalreserve.gov/econres/notes/feds-notes/cent...
DDoSing another state's crypto would probably be considered an overt act of war, so I don't know how often that could happen.
I have no idea what Libra is to be honest.
As for states, they're rolling out their own cryptos. The Chinese have CryptoYuan, the EU central bank is releasing a currency likely by late 2021, and the Federal Reserve is also planning to create a new currency. That's how they beat Bitcoin.
Fiat currency is likely going to be slowly phased out as cryptos take hold, like an old iPhone.
States will absolutely gain power if they adopt cryptos, because they can implement currencies that can always be tracked and disseminated much faster and easier than fiat.