This question kind of reminds me of the same proposal asking if the Unites States is going to have another civil way.  The answer is absolutely not even remotely close to it nor do I ever see it coming to fruition.  If it did ever come to fruition I think that bitcoin is most likely to be set to replace the US dollar, and I can't find any other type of currency that fits that bill.  Certainly isn't the Yuan and Ruble.  But that's just my two on it.