"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
New Apple TV Hacked to Run Native tvOS Web Browser
The simplistic tvOS web browser allows you to scroll through pages with the Siri Remote, and pressing the center of the touch surface brings up a cursor for clicking. Pressing the Menu button returns you to the previous page, while the Play/Pause button allows you to input URLs, according to GitHub.
Apple does not allow Apple TV apps to have UIWebViews, so this web browser would not be approved on the tvOS App Store, but the project is a good proof of concept. Apple TV users interested in testing the web browser can follow iDownloadBlog's guide to sideload the app using Xcode and modify a tvOS file to build it successfully.
Earlier this week, it was discovered that tvOS also includes support for iOS-like folders.