This camera has me very interested indeed, since it has the A9 focusing system, eye af, and a better EVF, 5 stop IBIS, along with all the other specs. It does look like it is much more ergonomic too. I will have to try one out at the store once they hit the shelves. Dual cards, 10fps (probably not with full raw mode though), very high resolution, etc. It ticks off all my boxes, except for a fully working touch rear screen which this camera doesn't have. Sony does a poor rear LCD it seems. 
Unfortunately I would have to use all my Canon lenses, because I don't have the funds to switch out. The 24-70 II, 100-400 II and the 100L are my favorite 3 lenses.
It is what I would want Canon to come out with on their next R. I don't need 61Mpx, but 40-50 would be nice. We already know Canon has a long way to go with eye AF, and sensor readout speed, so I am not convinced the next R will a huge step forward. I hope to eat my words though.