What features are you wishing for in iOS 7?
I'm still pretty happy with my iPad 2 and everything I can do with it. But since the question was asked:
1. Multi-tasking/windowing, at least in a limited fashion. Such as being able to play videos in a little window while reading emails or web-browsing. I think Win 8 and Android already do this, but its not nearly enough to lure me away from iOS.
2. Guest accounts where I can limit what can be done/viewed. I doubt this will happen since I think Apple would rather everyone buy their own device. If so, at least let me password-protect the mail app and settings, and allow for separate Safari profiles.
3. A nice-to-have would be a revamp of the home screen. Make it more customizable. Allow apps to publish info to their home screen icons and allow those icons to be resizable. Or add support for 3rd-party home screen widgets like weather, sports scores, news, etc. Let me decide which icons/widgets can be viewed on the lock screen. Also, give customers the choice of keeping their "classic" home screen, or going with the new "Active" one.
I'm sure anything else Apple comes up with will be interesting.