I'm highly disappointed by Amazon for recommending CloudFormation, but always neglecting to maintain it. Aurora has been in preview for a while, adding support for it in advance would be a great thing and coordinate the launches. As a person who fell in the trap to use the "best practice", I'm always months if not years behind in my CloudFormation stack as it takes months for CloudFormation engineers to add, let's say, a single attribute.
So, based on my experience, give it a quarter before you see it in CloudFormation! I keep bugging Jeff Barr, but it seems that he doesn't have much control over the process.
The whole development process at Amazon seems broken. Everything is developed in a silo and once GA, then other teams start integrating it, unless the two products cannot operate in isolation.
P.S. I keep checking this URL [0] several times a day and I curse several times a day, because it almost never changes!