Check out this iOS 10 concept video which focuses on changes to the command center

The next iOS update will bring Apple's mobile OS to iOS 9.3. The new features should include Night Shift. This automatically removes certain shades of blue from the screen of your iOS device once the sun goes down. Research shows that viewing blue before bedtime could make it harder to fall asleep. With iOS 9.3, using 3D Touch on the icon of stock apps will give you quick action choices. And the Notes application in iOS 9.3 will allow you to secure the messages you send to yourself, by using Touch ID or a passcode.
Want to see what the command center could look like on iOS 10 if Sam Beckett has his way? Then all you need to do is click on the video below.
source: SamBeckett via MacRumors