Hi There
I'm a Canon shooter since ages and no - Canon is not doomed ;-) I have a number of professional bodies from Canon and a lot of L lenses and also recently purchased a m50.
I also have to say i still love the Canon lenses, the ergonomics of the bodies, DPAF (well i don't do a lot of video other than just for fun) the wifi implementation - the last 2 sucks on Nikon or are just not existent.
Also for various reasons until very lately i would never consider to move on to Sony (ergonomics,lenses,....) and thanks to Nikon with the z6/z7 i now dont need to think about switching to Sony anyway. ( i would rather switch to NIkon but i dont want to)
BUT today with the z6/z7 i really feel left behind. Why ?
In the DSLR line of products i think Nikons current models really are ahead compared to the Canon models, the D850 is better than my 5DM4/5DsR (i love my 5Dsr but still ...) , the D500 ist better than the 7DMII (which i owned and i tested the D500) even the D7500 (with some "issues like only 1 card and not grip option) is better than the 80D (i've tested them both - except video AF and Wifi as said before). Only the D5/1DX MII are probably on par.
If i had nothing and wanted a DSLR - i would go for a D850, a APS-C affordable sports camera - i would pick the D500 and a small carry around every day Dslr - the D7500 or even D5600.
And instead i would like to go mirrorless - i would pick the Z6 and a D850 as a combo.
I don't want to change but please Canon respond quickly and do it right in terms of features and price. Please. Give us a great FF mirrorless that has 2 card slots and eye-AF , a great sensor and a good EF adapater and a nice line up of original lenses at the beginning , 10fps, good grip/handling/weather sealed - even steal from z6/z7 body if required ;-) like the battery compatibility between Dslr and mirrorless camera. Also give us a 90D that is better than the rest of the market (and make it without AA filter please) and give us a 5DM5 that is on par or better than the D850. Please. At least tell us when we will get it so i don't have to switch early in 2019. Please.