There's another question to be answered: if this happens, will the Touch ID fingerprint reader go away? It's not so clear. Apple clearly took advantage of eliminating the home button to expand the iPhone X's screen size, but that's not as necessary on devices that already have large displays. Also, Apple has typically kept larger bezels on the iPad due to its size -- you need at least some space for your thumbs on a device that you can't easily hold in one hand. We'd add that it could complicate multitasking, since Apple already uses an upward swipe on the iPad's bottom edge to bring up the app dock. How would you handle that while also using a swipe to go to the home screen?

Whatever happens, it would make sense for the iPad Pro to get face recognition. Apple has made a habit of bringing relatively new features to its higher-end iPads (such as upgraded displays and the Smart Connector), and TrueDepth might be one more reason to spring for a Pro instead of sticking to the base model. And if Apple is going to continue pushing augmented reality, it'll want tablets that particularly well-suited to the task regardless of the camera you're using.