Well, my 5D3 still rocks. My faint guess with this new rumor is: Nikon somehow has a fairer strategy. They have an affordable FF (D600, here I'd prefer the 6D at 20 MP), an affordable high MP FF (D800, although there is no MRAW mode!) and a lower priced (in comparison to the 2 years old 1Dx) 16MP flagship D4s. So, it will look a bit awkwarded to me, if they ask an extra premium for more MPs. Hope they get their sensor tech resolved with this new babe. That is the only point of interest for me. And if Canon does so, there is hoping that the pixel count of the allrounder 5Ds will remain about the same, plus faster processors and improved sensor tech. I would really like to see improved ISO 51k (RAW) somewhere near the ISO 20k-25k of my current cam, IQ wise. What I've seen in relation to RAW IQ from a friend of mine testing his new D4s is quite nice. ISO 102400 and even 204800 are a nice alternative and for b/w you even dare to shootISO 409600.