Bitcoin does have a lot of chances that it will become the world's crytocurrency.
Bitcoin will become the most famous currency and nothing can stop that.
I am dam sure bitcoin will replace the dollar soon.Upto now the dollar equalant value of bitcoin is 3351$.If all the trading and investing is made by bitcoin means .Their is no doubt to became world currency and make the paper currency will not live or make to disappear. Bitcoin is our future currency.