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:

20mp CMOS
61pt AF (all crosstype & f/8)
16fps with AF/20fps in liveview
4K 60P
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.

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