My Jeep might not get any trail improvements this year. A 5D with 1DX autofocus (I'm assuming the 1DX autofocus system is going to be awesome), 6 frames per second, and increased weather sealing? It's almost like having a mini-1Ds for almost half the price! And this statement was very encouraging if true (if true): "As an example, he says [Westfall], an ISO 3200 picture shot with the new model has roughly the dynamic range, noise and other characteristics of an ISO 800 picture shot with its predecessor." I never once felt that I have been hampered by megapixels, but those 4 attributes (autofocus, frame rate, weather sealing, and high iso capability) are definitely upgrades (especially b/c I have a 5Dc) that I feel would improve my full frame shooting enjoyment.