Why would DAI be the solution to stablecoin? Where is USDT because this is the best stable coin in crypto world right now, centralized or decentralized I don't care, USDT is big enough and I believe it's right on top of every other stablecoins if not, top exchanges won't paired USDT to other coins on their exchanges, USDT got the more love that DAI, for now though
Some day if shit things like lawsuits on Ripple knock the doors of Tether USD, you will see why there are few stable coins on the market and why people try to create and use decentralized products. Centralized and decentralized stable coins have their plus and minus points and each person has different demand and reasons to choose one to use.
USDT is dominating the stable coin market but DAI is rising very good this year, in trading volume. I see it is too soon to talk about flippening between USDT and any stable coin or DAI. But there will be something changed in the stable coin market.