To be honest
We remain committed to ensuring the best possible solution for developers and hobbyists to create games for Xbox One
doesn't exactly scream "We're still doing this!" to me, it's almost as vague as the original statement that caused the perceived confusion.
I thought this sounded more like a bullet point for future possibilities when it was announced, and I still think it's probably more that than anything at this point. I would say that if Sony came out and announced that they were turning PS4s into devkits, too. When they first announced it, there were blurred lines across articles as to whether it was going to be a full devkit conversion or some sort of debug console, if anything comes of this in the long term, my money is on debug more than full out dev.