we will not know what will happen in the future, but we can predict it through the data and history that ever existed. there is already a lot of cryptocurrency which is said to be beyond bitcoin, call it ethereum and ripple, and there are also some cryptocurrency that its ICO sells more than bitcoin price, but in fact bitcoin is never replaced by other cryptocurrency, some say because bitcoin is pioneer and mother of cryptocurrency, some say because bitcoin is already a reference price of other cryptocurrency. just as the dollar has been the world currency's benchmark for decades, the same bitcoin will be at the forefront of the world of cryptocurrency