Matthew Walsh

Yes it's a native 4k crop recording pixels 1:1. The size of the sensor area used is the same as the GH4. The "max resolution" of the LX100 sensor is cropped from the true full sensor size, making all the equivalence numbers a little less straightforward. You're close though. Panasonic lists it as 26-81mm in 4k 16:9 crop. Truth be told, the difference between the two in use is very subtle, but attention to detail is important so I appreciate the specificity of your questions.

If he's left eye dominant then he wont be able to do this, if he is right then he is already,  so this is a redundant sugestion.  I'm left eye dominant and can literaly not se with my right eye through a veiwfinder unless i completely close my left eye.  Which I dont do because my vision is blured for about 5 mins after I open it again.

It's focus-by-wire, so no it is not repeatable off the barrel. The shutter speed dial does not include 1/50, but you can dial it in easily with other knobs.
 
 
The camera actually doesn't use the entire 4/3 sensor at any given time like a GH4 in photo mode can. The sensor is set up with a multi-aspect mode, so depending on the aspect ratio a different chunk of the sensor is being used. Its 4k mode uses the same area as the GH4 - resulting in a 2.2x crop from full frame 35mm. But the lens isn't 12-37.5mm, it's 10.9-34mm. So the 4k crop is actually very close to 24-75mm equivalent.
Rolling shutter is the same as the GH4.
No Cinelike profiles at the moment, but picture styles have the same adjustments that they do on Panasonic's other m4/3 cameras.
Haven't tested the sound yet. I'm expecting GX7 quality (great for built-in mic), but that's just a guess. 

Highly unlikely. Super35 is "full frame" for cinema, and using a larger sensor could alienate part of their customer base. I think saying "almost all" users are putting L glass on them is a bit off base as well. I've seen (and used) a lot of EF glass on FS700s (though only some was L, and most of the time it's been Zeiss CP.2s or Canon CN-Es), but I've seen nearly as many lower end users being fine with E glass, and higher end users adapting PL glass.
 
Most cine lenses are designed for S35 sensors. Full frame is a cool look, but it's not the standard - and there's already an A7S for that.
 
 
It'll be interesting to see what they do with this camera. There's a lot more high quality competition in the marketplace than there was when the FS700 came out. Hopefully they have a few tricks up their sleeve.