As a digital payment system virtual currency has its own reputation. Bitcoin raised as strong virtual currency in 2010. Todays global currency is developed in different way and comparing with others currency bitcoin is like more valuable than gold. Good reflection and better control system can make more valuable in economic sector. now by the help of bitcoin selling and buying system is easier than other transection. At age of technology we can collect or hire so many proficient worker for the purpose of different sectors development and then we can provide their salary through bitcoins because of its popularity.
On above this conversation we dont need to worry about future of virtual currency or bitcoins.
Nobody knows what the future holds with bitcoins but for me as long as there people investing bitcoin, trading, selling or do any bitcoin transactions bitcoin will still be active. I guess bitcoin is now getting popular since a lot of people wanted to earn bitcoin.