By this October!
http://www.sonyalpharumors.com/sr4-nex-ff-only-15-bigger-than-the-nex-7-available-in-october/
Note that it is of SR4 probability which means that it is likely to happen!
How is Pentax then? Where is Pentax? What "hi-end" thing that they are actually still working on??! >:-o