I don't think it's a ban, if it happens, it will happen in a moment. And if we realize that there is no chance, we will have time to save their coins.
If they ban crypto currencies, or maybe Bitcoin, well that is obvious, then you will not be able to use them in your country, that is the obvious answer. That is the expected scenario when the government of a certain country ban cryptos or Bitcoin. But hey, you can still transact them online, trade them in exchanges so it is still fine.