I'm not sure I would class some of those countries as 'major' ... but there is a general sense now that bitcoins are leaving the USA, and at an accelerating rate.
I think so, maybe bitcoin will run with most of the fiats that has been used for transactions worldwide and be one of rge global currency if every government in the world accept bitcoin as a new currency for exchanges as well as the mediem for trading which undoubtedly better than money that is stable while in your hand , unlike bitcoin that there's a possibility that it wll raise.