This is what I'd like to see from Canon's upgrades:
6D Mark-II - Casual/Landscape/Travel (Target price $2,200)
High Resolution DPAF CMOS sensor
Maximum Resolution: 39.4 Megapixels (7692 x 5124)
Native ISO range: 64-25,600
Expanded ISO range: 32-102,400
3.5fps (100,000 actuations)
41pt AF (all cross-type)
Centre AF point is high precision dual-cross-type with f/2.8 lenses
Memory Card: SD-U3/U1 compatible
Articulating touch LCD
Wifi 802.11ac
GPS + Compass
2560x1440 @24/25/30p
1920x1080 @24/25/30/50/60p
1280x720 @24/25/30/50/60/100/120p
5D-IV - Wedding/Events/Sports/Wildlife/HD-Video (Target price $3,500)
DPAF BSI-CMOS sensor
20.2 Megapixels (5502 x 3668)
Native ISO range: 64-51,200
Expanded ISO range: 32-204,800
10fps (200,000 actuations)
71pt AF (all cross-type)
15pt active with max aperture of f/8
Dual SD card slots (U3/U1 compatible)
GPS + Compass
2560x1440 @24/25/30/50/60p
1920x1080 @24/25/30/50/60p
1280x720 @24/25/30/50/60/100/120p
5120x2160 @24p (external recorder)
Wifi module included in battery grip
5Ds - Studio/Portrait (Target price $4,200)
Tri-layer Sensor (16bit/channel)
64.3 Megasensels (5670 x 3780 x 3 layers)
3fps
ISO 64-2000 (expanded 32-8000)
Electronic global shutter
Dual SD card slots (U3 compatible)
35pt AF (all cross-type)
Wifi 802.11ac
Built-in Speedlite Transmitter
1D-C Mark-II - Wedding/Events/Sports/Wildlife/4K-Video (Target price $8,000)
High Resolution DPAF CMOS sensor
39.4 Megapixels (7692 x 5124)
12fps
16fps (with Mirror Lockup) in 1.3x crop mode (23.31MP)
Native ISO range: 64-51,200
Expanded ISO range: 32-102,400
71pt AF (all cross-type)
21pt available with f/8 max aperture
Electronic global shutter
2560x1440 @24/25/30/50/60p
3840x2160 @24/25/30p (50i/60i)
7560x3240 @24p (external recorder)