The above image may remind you about a Blurry screenshot posted sometime back. This screenshot revealed notification center settings on Windows Phone Blue. Now, the screenshot has been deemed genuine by other sources as well. Nawzil has just posted the above clear image and seems it is from an old build of Windows Phone 8.1.
As you can see in the leaked screenshot, there is option of choosing up to four apps for quick access and showing notification. Disabling any of these app’s notification will not make the app’s Live Tile disabled. There is also option of showing notification over lock screen. There is something called “banners” which to me looks something like big rectangular notifications appearing on top.