Apple appears to have inadvertently leaked several new Series 4 Infograph watch face complications that could debut in a forthcoming watchOS update, though the user interface assets are not active in the current watchOS 5.1.1 patch.
Upcoming Apple Watch Series 4 complications | Source: 9to5Mac
The new first-party complications, which include Home, Mail, Maps, Messages, News, Phone, and Remote, are designed for the Infograph and Infograph Modular watch faces exclusive to Apple Watch Series 4.
As noted by 9to5Mac, users running iOS 12.1.1 and watchOS 5.1.1 can preview icons for the complications listed above by browsing the watch face gallery view in the companion Watch app for iOS. Currently, the complications cannot be configured on a paired Apple Watch.
While the functionality of the complications will remain unknown until their launch, it can be assumed that most of the icons will serve as simple shortcuts to corresponding watchOS apps rather than provide tangible information like current complications covering weather conditions and battery life. The News app complication, however, could display current headlines as the main component of the Infograph Modular watch face.
Apple will likely include these new complications in an upcoming watchOS developer beta, with the software potentially dropping as soon as this week.
The lack of compatible complications for Apple's new data-rich Infograph watch faces was one of the few concerns voiced by early Apple Watch Series 4 adopters.
Users received watchOS 5.1.1 earlier today after a previous version of the software update was pulled for bricking some Apple Watch models last week.