There are many good discussion points about such a purchase.
[list type=decimal]
[*]What do you shoot with now?
[*]Why do you want/need a 1DX?
[*]What do you think a 1DX MkII will have that the 1DX doesn't?
[*]Do you need/want these additional speculative features?
[/list]
If your current camera is letting you down, get the 1DX.
If you want it just because you want it, get the 1DX.
If you don't have a pretty good idea of what a MkII will have that you need over the 1DX, get the 1DX.
If a 1DX can do the job/satisfy the desire you have for a new camera, get the 1DX.
I want a 1DX, I even have the money set aside for one, but I don't need it, so I am in the slightly unusual position of making a conscious decision to wait and see what the MkII brings. Some of the many features I'd really like from the current camera are the medium iso performance, 800-3200 iso; the newer RT flash integration, the better screen, the multiple exposure function, the second joystick etc etc. I could get a couple of 5D MkIII's to get the MP I demand and use, but at this point I am happy to wait.