Looks like the first foray into dynamic award pricing is here. Check Economy Web Specials - they're not just cheaper saver awards anymore, they appear fully dynamic in their pricing.
Interesting that it appears alongside saver awards for the time being. And it's also for economy only. So I'm sure there is more to come.
In the immediate term, this has introduced some very interesting award opportunities around expensive holidays like Thanksgiving that you may want to book while they are still figuring out how to properly fleece us with dynamic awards.