There was big talk about bitcoin becoming mainstream in 2015, but I don't think it's going to be at the very least 3 years before bitcoin goes mainstream like Wikipedia did 10 or so years ago. New things take time to adapt and as far as an open-source technology like bitcoin and blockchain is concerned, it will take a long time still until people can trust the digital currency and be confident the currency will not collapse. By then the price will probably be quite high.