Currently I have a 7D II, 1D IV, 5Ds R and a 5M (wifes).
I feel like I am set for the next few years.

The next update to the 5Ds R might be of interest. Or the next 1D body.

Here is my dream plan.
My plan in four years is to move to a one body system, a 60mp, 12 fps weather sealed body with excellent noise reduction and increased dynamic range.
It will have a battery life of 1200 RAW shots and be full frame mirrorless with an AF system that never misses and is extremely fast.