I finally can confirm the Nikon DF announcement date: November 5th, 2013 (Tuesday). For all US readers, that means the announcement will be Monday night. The actual camera name could be Df and not DF. As previously reported the Df will fully support non-AI lenses. The AI coupling lever can be moved up in order to mount non-AI lenses – just like the Nikon FM, FE, EL2, F3, F4 and Nikkormat FT3 cameras: