Just like a video game company, Canon will release an update that also fixes unacknowledged issues their cameras have. In the video game world, we call them "stealth" changes.
I, like many others, are waiting for the addition of some of the rumored video enhancements. But, for now, I really hope we see a "stealth" fix in this update for some of the random locking up that I have gotten about 5-6 times with this camera over the past few months. It's certainly not common for me, but it appears to be more consistent for others.
In the future, I really want more options for FPS in both electronic or mechanical shutter. My 1DX had the option to shoot at manually commanded FPS for each drive mode - hope to see that feature. REALLY looking forward to using the EVF to track birds now - this is what I wanted!! A more DSLR like EVF in the high speed mode.