Canon Rumors released an image and list of specs for the upcoming 5D Mark IV. They said their source confirmed GPS will be standard.

Canon EOS 5D Mark IV Specifications:
30mp
Compact Flash/SD Card Slots (No CFast)
Built-in Wifi
24/30fps @ 4K
60fps @ 1080
120fps @ 720
USB 3
Cable release port moved to the front of the camera where the “Mark XX” badge was.
A lot more touchscreen functionality than the EOS-1D X Mark II
Other ergonomic changes, such as a new “locking switch” on the rear of the camera.