iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Leaked 5th Gen iPod Touch Images?
Overall, it's hard to say too much. Each new component seems easily fakeable using existing images. This, and the fact that the submitter is broadcasting it anyone who will listen makes us think its likely fake.
Update: Moved to Page 1 due to the traction the images have gotten around the web.