As in, it is definitely impossible to impose a global 'one for all' set of regulations on Bitcoin or cryptocurrencies in general. While each country preps up to take its own stance against this, there is literally no sign of a united decision anywhere. Ultimately, it is left to hands of the concerned governments to do what they think is necessary for the country rather than entertaining something which could hinder the economy.
Highly impossible. Most countries today are independent, and stand based on their own policies and regulation and even though we have some international monetary policies, having a global regulation on cryptocurrency is something that would not work most especially since it is highly decentralized. As long as each country is convenient with the idea, they will just come up with regulation policies unless they only want to borrow a cue from others.
Yeah, and if we take a look at most of the countries who really do not see it as a threat, they are still doing pretty fine and adoption is increasing here. Sure, we may get to see some huge global level of regulation, but coming as one body to regulate is not going to be possible. However, I believe with the way things are going, every country will start seeing how they can regulate and possibly benefit from the whole idea.