First, there are changes to Face ID. You can find references to landscape orientation in the iOS 12.1 beta. Face ID on the iPhone is limited to portrait orientation. Chances are you didn’t even notice this limitation because there’s only one orientation for the lock screen and home screen.
But the iPad is a different story as people tend to use it in landscape. And even when you hold it in landscape, some people will have the home button on the left while others will have the home button on the right.
In other words, in order to bring Face ID to the iPad, it needs to support multiple orientations. This beta indicates that iOS 12.1 could be the version of iOS that ships with the next iPad.
If that wasn’t enough, there’s a new device codename in the setup reference files. This device is called iPad2018Fall, which clearly means that a new iPad is right around the corner.
Analyst Ming-Chi Kuo previously indicated that the iPad Pro could switch from Lightning to USB-C. This would open up a ton of possibilities when it comes to accessories. For instance, you could plug an external monitor without any dongle and send a video feed to this external monitor.
As for iPhone users, in addition to bug fixes, iOS 12.1 brings back Group FaceTime, a feature that was removed at the last minute before the release of iOS 12. If it’s still too buggy, Apple could still choose to remove the feature once again. Memojis could support iCloud syncing across your devices, which would be useful for an iPad Pro with Face ID.