I find this to be an exiting time and transition.
I have come to appreciate the advantages of mirrorless with the Olympus system I use for overseas travel, I love real time histograms for instance and waste far less time reviewing exposure after the fact. And IBIS is such a big advantage across the board of lens use, and stunning with those lenses that also have optical stabilization. The small form factor will keep me using the Olympus for travel as we all know that the format size is the biggest influence on system size as opposed to simply going mirrorless.
But when back home or traveling in North America for my landscapes I continue to love using my Canon as well.
Thus I look forward to what Canon will offer. My wish list is for better sensors, IBIS, and eye detection focus among other things. (Eye detection is semi wizard in the Olympus and would be greatly appreciated with wide open portrait focal lengths).
But, as you know with Canon, they may score well with many of their lenses but they have a habit of disappointed too when it comes to some aspects of their bodies. Innovation with bodies has not been their history for some time now. They are solid and reliable but always seem a step behind.
But I digress; the exciting thing is that we are entering an era of semi body agnostic. If Canon disappoints I may very well try at least a Sony body, or perhaps a Nikon if reasonable adapters show up. For landscape work, adapters are likely to perform well enough, but there are obviously mixed reviews when it come to AF performance.
But if I like what I see with a competing body, it would trigger a transition to native lenses away from Canon, at least for those that benefit the most from AF performance. (I would not give up my Canon TS lenses and a few others). Mirrorless bodies are opening up the option to transition at a measured pace rather than dumping everything at once.
Maybe I will even join Bernard to the dark side of the force, (Nikon).
Changing systems must be carefully evaluated as it is obviously a significant expenditure over time, despite those here that feel a DDS degree is a license to be extravagant. They forget, I still have a wife to answer too. And with my luck, just as I complete a transition, Canon will come out with the most amazing body that crushes every one else.
One thing I have not seen a comment on yet; will the Nikon IBIS work in conjunction with optical stabilized F series lenses via their adaptor?
Regards