Apple has just posted the changelog aka release notes for the forthcoming watchOS 3.2 beta update hinting at new Theater Mode, SiriKit and WatchKit enhancements for Apple Watch. Although the Theater Mode was originally proposed to debut with watchOS 3.1.3, it is now evident from the official changelog that the feature will be introduced in the forthcoming incremental update for Apple Watch.
According to Apple's description of the Theater Mode, it enables users to quickly mute the sound on their wearable device and avoid waking the screen on wrist raise. However, users will continue receiving notifications (including haptics) while in Theater Mode, which can be viewed by tapping the screen or pressing the Digital Crown.
Apart from the Theater Mode, the new watchOS 3.2 update will also include an improved SiriKit framework that will enable you to book a ride, make a payment, send a message, or make any other requests through third-party apps on the Apple Watch. Some of those app services include messaging, payments, ride booking, workouts, calling and searching photos.
In addition, the WatchKit Framework enhancements add support for simple playback of audio data from a file or memory, using its integrated AV AudioPlayer framework.
[Source: Apple Developer portal]