Yes if you really think that bitcoin really the future money that can possibly happen. There are so many issues about that and they all say that it can possible because some country didn't accept bitcoin because they all know that someday bitcoin can make bank disappear and also our real money.
Lets talk about the factors that determine or define a BEST currency. The first thing is liquidity which means is it widely acceptable. The second factor which defines the risk factor. A currency having high risk factor is not likely to be acquired by people. The third factor is return on the money (if held in that currency). If the return is good, it is widely acquired. Bitcoin has all there qualities which makes it the best. Besides, it is virtual currency with no physical shape which would possibly make it the future currency.