Hi
Actually there is no clear regulation of bitcoin. No official statement from the government yet. Maybe some countries are still doubtful with the existence of bitcoin, because there is no clear regulation then the possibility of bitcoin prices rose even dropped unpredictable.
Thanks
I don't think it will be accepted by every government officially but it will definitely be used in every country where there is internet access without restrictions that's why Bitcoin is decentralized; it was created for this purpose and not for any government to give his approval before it works.