It is already a international currency as majority of people across the globe are using it, the only thing we need is that it should hit the mainstream to get more popular in future.
Yes it is because as we all know bitcoin is most powerful and popular crypto currency in all. Most of the people prefer bitcoin than the rest. In a matter of fact, bitcoin is peer to peer electronic money system and used as transactional tool. I am favor with this because there are many investors who support bitcoin as well as people who enjoy doing bitcoin. Majority of the people used bitcoin that's why it id possible to make it happen.
There is a long way to go.To become an international currency,it should be accepted all over the world.All the people must know about it.The governments and central banks should support it.But this is not the case.Bitcoin is banned in some nations.Bitcoin is not legalised in many nations and is also not backed by any central banks.Many people still depend on paper money for their day to day transactions.Bitcoin requires internet connection but this is also not possible in every corner of the world.