In WatchOS 3, there is an AirPlay button at the very bottom of the control center.
When I press it, the only option I see is Apple Watch.
But on my iPhone, I'm playing audio from SoundCloud. I'm there able to assign the audio playback to AirPlay devices:
As noted in the image, I'm not using a real AirPlay device but a virtual one, via Airfoil playing on my Mac. But it should still behave like a real AirPlay device.
So, is this new button in the WatchOS 3 control center just for "AirPods" and the like?