That's way too big
optical viewfinder is something many don't use anymore so it would be waste of space and money, but as an additional accessory it would be good. Just remove the LCD and turn the thing sideways and you get smaller and better desing
Longer and shorter/narrow is always the best way to go. If you MUST have the screen on the camera, put it on the right side of the camera (Alexa style) and make it smaller. At least it would be helpful in some cases for focus puller though they usually use a lot larger LCD's. No LCD would be the best way still.
Another thing... battery needs be replaceable. You will get more money when people buy more of your batteries and don't need to go shopping batteries from other manufacturers. Also that saves space when additional batterypack systems like v-locks don't have to be used and carried around. If that means a bit smaller battery with 1 hour runtime it would still be awesome. 1 hour is very good if you compare to cameras like Scarlet and Epic which can only run 30mins with one battery.
The Canon EF/EF-S mount is also just perfect if the sensor will change to S35.
This thing has so freaking much potential that I can't wait to get my hands on the version 2.0