I don't think "soon" but I do think after 15 years or so it is a definite possibility. "soon" i guess is a relative term.
I bet to disagree,dollar has been fiat way back and most of the sccessful asaction were done through dollard , I believd bitcoin will be knoen all over the world soon and it will be used by most of the pople in near future and it will run with he dollars and be used for payment local or public transactions but I on see soon that it wll replace dollar.