I don't expect Apple would willingly license their patent to their competitors in the mobile space (who, after all, would just want to slap a FaceID-equivalent feature into their own phones); but they'd probably be interested in licensing it to e.g. electronic door-lock companies, or action-camera companies (add a "depth" track to your video), etc.
My guess is that rather than the Kinect, what people will probably be buying 2-5 years from now for "commercially scalable" projects is an LG USB webcam that has Apple's miniaturized sensors embedded, and is using the (by-then-standardized) no-name Shenzhen remake of Apple's face-recognition ML-accelerator core.
https://www.reuters.com/article/us-apple-iphone/apple-disput...
From https://www.apple.com/iphone-x/:
"Face ID is enabled by the TrueDepth camera and is simple to set up. It projects and analyzes more than 30,000 invisible dots to create a precise depth map of your face."
On one hand, you could see this as fooling around with Kinect tech now requiring a $1000 investment in an iPhone. (Or buying a Kinect used; there are still plenty on the market.)
On the other hand, you could believe in the inevitability of Shenzhen to take the probably $3 part Apple has designed, stick it into a little housing with a micro controller, and commoditize “Kinect Minis” within the year. :)