Yep. I'm really seeing a near-term future of using a touchpad or kinect-like device for control, but more importantly paired with the smartwatch for vibration feedback / engaging into a gesture mode. There's no hard rule that a watch has to only connect to a smartphone.
And if you look at the Apple's acquisition of Primesense (kinect-sensor folks) and upcoming introduction of 'Taptics' into the Apple Watch, my guess is that these things will work together.
I've been trying to prototype this as an experimental addon to my touch plugin thimbleup.com (and sure, I'd love to eventually make it work with Senic Flow too). Testers have noted making continuous gestures/controls need a bit of 'stickiness' to it -- something that makes the gesture feel that if you use it enough, you don't have to rely solely on your eyes. A smartwatch takes care of that if it can manage the battery-life of being a low-latency bluetooth mode to get feedback data quickly,