Do you people really have no imagination? Notifications, News, Messages, Reminders, Calendar, FaceTime, picture-in-picture, multi-user, homepod/remote siri control, safari, resolution switching, live tv guides, audio passthrough, Weather, Control Center, iCloud backups, music visualizers, night shift, Home app, open Siri search API, network storage support, support for different containers and overlays in native video player, updated AW remote app, HDR10+, updated tvOS app store, Wallpapers, Handoff, VPN, etc. etc. etc.... even the UI and home screen could do with a revamp
Instead we get Atmos (great, but we all knew it was coming) and some new aerials..
Nothing about tvOS's features have anything to do with content agreements. Content is something I personally have no problem with on Apple TV.