Was planning an upgrade to a 7DII soon. I'll probably wait to see the reviews on the 80D. If the Noise/ISO are similar between the two, it will be a tough choice for me. I like the idea of 10fps, but 7fps is no slouch, and...
When I'm shooting the ISS transiting the Moon, the articulating screen would be a huge help and 24mp vs 20mp would be a bonus too.
The focus system looks pretty good
I've never used Wifi but can see some uses for it, and could have used it at times in the past.
Remote "hooting"! I LOVE OWLS! (seriously though, there have been times I would have used it if I had it).
Not sure yet how the "timelapse movies" function will work. I've shot a few, but would prefer to shoot raw files and process them for a timelapse, so this might be a wash with the7DII, although the built in intervalometer on both will be upgrade over my t2i and 7D.