"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
Apple Seeds Third Beta of tvOS 9.2 to Developers
tvOS betas are more difficult to install than beta updates for iOS and OS X. Installing the tvOS beta requires the Apple TV to be connected to a computer with a USB-C to USB-A cable, with the software downloaded and installed via iTunes or Apple Configurator. Those who have already installed the second tvOS 9.2 beta will be able to download the third update over the air.
tvOS 9.2 is a significant update for the tvOS operating system. It brings support for Bluetooth keyboards, allowing a keyboard to be paired to the Apple TV for text entry. Bluetooth keyboard support is a major feature that was missing from previous versions of tvOS and its addition should make it much easier to do tasks like entering passwords on the fourth-generation Apple TV.
Along with Bluetooth keyboard support, the tvOS 9.2 update introduces support for grouping apps into folders on the Home screen like on iOS devices, plus it includes a new look for the App Switcher interface and it brings support for iCloud Photo Library and Live Photos.
tvOS 9.2 also introduces MapKit so developers can incorporate maps into their tvOS apps, and it adds Siri support for US Spanish (in the US only) and French Canadian (in Canada only). UK English, Australian English, and US English are also now available as Siri options in the UK, Australian, and US Storefronts when English is set as the tvOS language.
We'll update this post with any new features that are discovered in the third beta of tvOS 9.2.
What's new in tvOS 9.2 beta 3:
Dictation - There's now support for onscreen text entry via dictation in countries where Siri is available. When updating to tvOS 9.2 beta 3, users will be prompted to enable or disable dictation. With dictation, Apple TV users can dictate text and spell user names and passwords rather than typing them.
With dictation enabled, the tvOS search bar alternates between a blank search field and an option to hold the Siri button to dictate text.
While speaking, a live levels meter is then displayed on the screen.
App Store Siri Search - Siri is now able to search for App Store apps, improving the app discovery process in the App Store. It's now possible to ask Siri to search for an app or to search for a category of apps, such as games and bring up a listing.