Bitcoin is trying to eliminate US Dollar, Euro (world currencies), banks, gold, silver, anti-government, debit cards and credit cards, anti-tax
How will Bitcoin survive the many enemies it has created by declaring itself a revolution in payment system and decentralization??
It's going to take a long shoot for Bitcoin to actually take over the aforementioned currencies. The first step is to gain mass adoption, which is still hanging for a while now afterwhich then how much do people use it as a means of exchange of goods and services. Aside that, I don't see anything happening soon.