Finally we have confirmation that Apple will indeed be hosting an event in March. Speculation has been rife of what might be announced including an iPhone 5Se, updated Apple Watch (too soon?), a new iPad and of course there will be iOS 9.3 which has the rather nice Night Shift mode.
Apple has set up a special page for the event, confirming that it will be streamed live on March 21. The video will be available here.