Isn't it alreday an international currency? I think it is. Since people around the world begun to use it it has begun global, international currency. Today I think it is used on all continents. Will it be officialy recognized as such, that is another question.
yeah i also think like that? you know bitcoin users currently reaches around the world and even in Africa though you'll surely find the bitcoin? and probably in every country even though the user also has arguably quite small? so I think it could be considered as a global currency?