I have high confidence that BTC become mainstream in next 10 Years but we can't guess what will happen in the future there has been most developed in the past few years many ICOs has been created and many investors has invested in BTC
Just we must have some patiences for the future BTC
We cannot determine what will be the future of bitcoin, maybe its bright and maybe its not. Because there are many more thing that will happen in that long time. We know that bitcoin is created through technology, and as what i see is that technology is upgrading, as the technology upgrades, many more opportunites will come, and many possibilities will come, just like bitcoin future is bright or not.