Simple solution to the AF issue. The EOS 3 AF was used up until 2007 and I'm sure it's been well and truly paid off by now. Why can't this AF be used in a FF prosumer camera and the 1 series develop their current AF separately, widening the gap in performance. The EOS 3 AF still overall trounces the 50D/5D II AF, except maybe in low light.
Heck, take a 5D, update it thoroughly to digic IV/V, hi res screen etc, 6fps, 1D AF (single processor), dual cards, no video, and sell it for $2.2K and call it a 7D. That's D700 competitor. I would have this as my main everyday camera and eventually grab a used 1Ds III or 5D II for landscape work, although even the 5D is plenty most of the time for this.