I would say non-collateralized stable coins are NEW money. Fiat backed is still fiat. I find what Maker and Ampleforth doing really interesting. Difficult to grasp for new users but I think with time and the proper education people will appreciate what they're trying to achieve.
The issue is to create a scheme that allows for decentralized backing in a way that you don't have centralized reservers. You need to back a coin with something, or otherwise it must be air.