When will the Kizumonogatari movie air? From what I have read, Kizumonogatari is a prequel for Bakemonogatari, and the movie is reported to be scheduled for fall 2013.

However, Monogatari Series: Second Season was just released this summer (2013), and is still ongoing, so I thought this movie might not be released (again) this fall.   

Have they delayed it again?
This answer is outdated. See Senshins answer.

There is currently no release date for Kizumonogatari. It was listed for Fall 2013, but was removed, so there's no official release date yet.

Source: ANN - Kizumonogatari Film Briefly Listed for Fall (dated 2013-07-31)