If leaked code analyzed and approved by XDA Developers, it is possible that Android will see big foldable-focused enhancements. According to previous reports, Android 12 will be followed by an update. This minor revision is expected to be called Android 12.1 according to the previous naming conventions.
XDAs analysis indicates that this update could bring a number of improvements to how Android handles large-format screens. This includes a split-screen UI and a lockscreen that makes more use of horizontal space. A new taskbar makes it easier for multiple apps to be used simultaneously. These are helpful additions that will make it easier for manufacturers such as Samsung to create their own foldable-focused UI enhancements on top of Android.
XDAs analysis shows that most of the improvements are due to the way the operating system makes more use of horizontal screen real estate. It allows Quick Settings and notification panels to be displayed side-by-side, rather than being displayed one at a time. The lock screen can be divided to display the clock and notifications on one side. To make it easier to use one hand to fold a folding device, a password or PIN can be placed to the right or left of the display.
Android 12.1 also makes it easier to use apps on split-screen. A shortcut is available in the recent app menu that allows you to open split-screen apps. This replaces long pressing an apps icon. You can drag and drop recent apps onto the taskbar at the bottom of your screen to open them in split-screen mode. XDA reports that you might be able to drag notifications to open split-screen apps. The Settings app is also getting a new interface. It now allows top-level menu items on the left and submenus on the right.
Other enhancements that are not focused on foldables include the ability to adjust the time it takes to activate the Google Assistant and making it easier to match manufacturers' system colors with Android 12's lockscreen.
Google has not yet released Android 12 to the public, nor has it announced anything similar to Android 12.1. XDA Developers may change the features they have described, if ever they are released. It is becoming increasingly likely that some of these features will be available sooner than expected, thanks to persistent rumors regarding Google's foldable phone. You can find the complete list of changes on XDA Developers.