Yes, I believe that is already starting to happen. I am sure Coinbase will add something like Stable Coin Maker Dai direct USD pair in future. It's decentralized, so you can prove the reserves are there unlike Theter. Just having the ability to buy a decentralized Stable Coin to bet in predictions markets like Augur would be a game changer. Stable coins are going to gigantic in use. I think the biggest coin by market cap will be a stable coin built on top of public blockchain. Two very important projects are the Dai and a project Circle is doing for stable coin.