These were just my thoughts on using the 1DX2 but not being able to take away any files to play with. My friend who uses a 1D4 was VERY impressed by the Mk2 handling and AF but again no files to play with!
Andy Rouse has been making some very positive noises about his Mk2 and getting some very nice shots at high ISO. I have no doubt from what I have seen, gathered and read that it will certainly be a better camera - no doubts about that! The question is how much better would it be for me (or you) for my/your needs.
I am still on the fence simply because I haven't been able to use one in the field and keep the files. When I do I will probably be very grumpy as I really can't afford one - but then I couldn't afford my Mk1 either