Clearly this is a discussion between marketing "experts" that ignore the majority of the market (which buys cameras based on their hybrid (photo-video)[/i] specification and abilities) and think like they (and their priorities on choosing products) is the centre of the universe... 
Well, let me inform you guys that this crucial part of the market that does its filming along with its photography through a camera... They do it in MF ...and they (by far) prefer lenses that have an aperture ring... 
...they also prefer (guess why...) a mirrorless product. Mind you that I (this is personal) find an EVF inadequate for creative photography (other than tethered) ...but this is only to declare the side of the river I prefer... it doesn't make me blind!
If I may, where do you get these obvious marketing facts from?
I have done some basic video shooting with my D800 for some internal corporate applications and it was perfect for that, way too good in fact. The low end video segment seems very well covered by DSLRs, whatever the brand.
On the other hand, the real video guys shooting for an audience seem to be shooting from blackmagic and up in raw. Even the a7s is pretty much described by those guys on this very forum as a toy lacking some key capabilities both standalone and when used in a video rig.
So I am not sure who are these people representing the majority of the market who would buy millions of newly designed manual aperture nikkors? My view is that there are already literally millions of excellent and cheap second hand nikkors out there that cover this market well, not to mention the fact that Nikon still manufacture some manual lenses (
http://www.nikonusa.com/en/Nikon-Products/Camera-Lenses/All-Lenses/index.page) nor that Zeiss has a full line of those with aperture rings in F mount.
Cheers,
Bernard
