Do you reckon iOS 7 will show the impact of Ive’s input? Or will it be a slower, more gradual transition that takes longer … There are big developer implications for radical changes to UIKit that need to be considered.
If iOS 7 is a true rethinking of iOS interaction paradigms, I would expect an iOS event in March, to give developers time to start redesigning their applications. For example, a major change to how notifications are displayed on screen (dynamic resizing of the forefront app, for instance) require meaningful developer input. Whereas, if April comes and no preview event, my odds on a major UI change to iOS coming this year will drop dramatically.
I sincerely hope that the latter scenario isn’t the case, though. 2012 was a great year for Apple’s hardware (the Retina MacBook Pro is awesome) but a relatively lacklustre software showing.