Director Imaishi Hiroyuki's New Anime Project 'Kill la Kill' Announced (Confirmed to Air 2013 October)

According to NewType magazine March issue, director Imaishi Hiroyuki has announced his new anime project. The production studio is Trigger, a new studio established by Imaishi after he quit Gainax. Imaishi said he has been working on the project since 2010 along with Panty & Stocking with Garterbelt. Details of the project will be revealed in the June issue of the magazine to be released on March 10th.

Update (May 9th 2013):
The new anime will be a 2-cour TV series named "Kirurakiru" (Kill la Kill).

Update (Jun 30th 2013):
Confirmed to start in 2013 October.

More information can be found here.

Source: Scan of NewType (with a rough concept illustration)

Kill La Kill on MAL