- Multi-user support for iPadOS
- XCode for iPadOS or support for basic IDEs
- RCS support for Messages
- iMessage group typing indicators
- Adopt design cues of macOS Big Sur (e.g. icons)
- Mail app overhaul
- Merge Find My functionality into Apple Maps
- Roll out that Maps review & photos system to get rid of the crapshot POI providers or Maps continues to be doa for me
- Health & Activity app on iPadOS (as a pure viewing app using iCloud data)
- Calculator app on iPadOS
- Weather app on iPadOS
- More default app options: Messages / Texting (including SMS APIs), Maps, Calendar, Camera. I don‘t think Music makes any sense as a default app option, there‘s no real deeplinking to play songs and your device remembers which app last played anyways...
- Love / Dislike options for the TV app (also 5 star ratings?) and the return of content reviews for TV/Movie. I want to tweak my Watch Now screen and not have suggestions based on watched movies I might not even like...
- Anything HomeKit related (performance & reliability)... maybe even a more in-depth profile system for Home users (e.g. allow guest profiles with limited & timed access, admin profiles and normal user profiles etc.)
- Anything Siri related that focuses on reliability. Don‘t add more domains if your base is rotten...
- I‘d love new Photos app social features. Maybe an easier way to share pictures with your family, like a „Family Feed“ you can post pictures to and have friends comment, like and optionally download pictures to their library. My parents love the shared albums but they seem to struggle with the concept behind it (e.g. set it up and share via Messages... meanwhile they have no issues posting something on Instagram)
- Smart caller photos based on the People album in Photos. Have caller Ids automatically pick a photo from the contacts Photo album entry if no photo is added to the contact
- FaceID/TouchID locking for apps on a system level
- FaceID/TouchID authentication for the hidden & deleted photos albums
- Allow widget resizing without removing and re-adding a widget
- Integrate TestFlight options directly into an apps App Store page (if public beta and desired by a developer)
- Finally roll out News app in more territories...
- Offer some Apple Card UI goodies for other Apple Pay cards in the wallet app, allow more in-depth integration for 3rd party cards in general
- Allow editing the 2 lock screen buttons (why is there a camera button and a swipe gesture for camera?)
- Lock screen complications (e.g. a small weather / temperature indicator)
- HomePod voice recognition for other languages