Here's the link to Canon's paper. It's there under Additional Resources.http://www.learn.usa.canon.com/resources/articles/2012/1dx_guidebook.shtml
I did not see the earlier 1DX AF Guide, but this is different to what I see in the regular 1DX User Guide.
Just about every one of the colour illustrations pointedly shows a red AF point. If the focus points are in fact black, this would be highly misleading. The way this is presented, I see it as reasonable to assume that the shipping 1DX will have the hoped for red AF points.