I dont think so. In the end game Gold is still a precious metal and a beautiful thing in the eyes of a person. Bitcoin is a different story as it is a very good way to make transactions so as for the better currency the bitcoin would be best of two as for my opinion.
yes may be one day bitcoin will replace the valuable metal named as gold. bitcoin is more prefer than gold. gold is used to making luxurious jweellary. but bitcoin is used many ways