Here’s a list of rumored specs for the upcoming Canon 1D X Mark II according to Canon Rumors. The release to scheduled for sometime in the first quarter of 2016.
Canon EOS-1D X Mark II:
61pt AF (all crosstype & f/8)
16fps with AF/20fps in liveview
FullHD to 240fps
CFast + CF
Touchscreen LCD (can be turned off)
More customization options for the menus and buttons
GPS & WiFi
Keep in mind they make it clear that this is coming from an unknown source.
Read more: https://www.canonrumors.com/canon-eos-1d-x-mark-ii-spec-list-surfaces-cr1/#ixzz3oOd3ScRP