It is not yet known whether or not the national government will prohibit bitcoin because each country has a different national situation and may forbid bitcoin because of one particular feature of bitcoin, which is different from country to bitcoin policy, but bitcoin needs the approval of the national government, the only way it will not be suppressed and can not be developed.
We can't tell what will happen tomorrow or the next day, because as what we have known right now bitcoin is somewhat ban in some countries and there's also some countries who accept it as legal matters. Different countries, different policy and laws so we can't tell, but hopefully may they allow bitcoin and cryptocurrency survive.