The technology-entrepreneurs are gearing up to launch a fully regulated bitcoin exchange named Gemini. They have touted it as the "Nasdaq of Bitcoin". The twins don't believe the currency will replace the dollar, but there will be increased liquidity and decreased volatility going forward. They believe that, at its current stage, Bitcoin is not ready for mass adoption, but in the long run should play a major role in financial markets.
"There will be a future where people will use Bitcoin," the twins say, "and they won't even know they're using it. At that point it's everywhere — it's a part of global finance, it's a part of our everyday lives. In the same way using email was very difficult and the edge of technology ... it's always difficult, it's problematic, it's painful to use, and we're at that point in Bitcoin right now. The point where we're beyond it is the point where people don't think of email as the bleeding edge of tech because it works so well everyone uses it … I think it's going to get to that point. "We'll be in a situation where the majority value transferred around the world will use the Bitcoin protocol."
http://www.businessinsider.com/winklevoss-twins-bitcoin-will-dominate-global-finance-2015-3