if the price will keep raising like that it will replace dollar for sure all the investers will use the bitcoin over all other currencies so it will be the main currencies of the market and then it will be the international methode to pay and the banks will be forced to accept bitcoin. but if it will go down and what is hard now but there is a hard chance to go like that bitcoin will start from the beginning and that will be bad it survived the first time but if it will drop down again there is no chance to survive.