ABSTRACT VIEW ...................
I feel technology is not the barrier nor is the cost to manufacture affordable MF bodies or lenses, margins are pumped to unrealistic levels with 35mm, example Nikon is making record profits to day on far less unit volume, significantly reduced costs and increased prices = margin = profits.
On the other scale MF will reduce costs as volume grows plus their getting smaller, they will carve out a market that the big three have left the window open to.
So much camera gear or component manufacturing is done in China directly or indirectly, why not with MF if not already.
The MF market demand will grow as the bridge gets closer to 35mm pricing though MF can get a fraction more in price, today's buyers don't care so much about the price they mostly just want what they want and often just pay what ever the price is asked.
I feel possibly Nikon Sony Canon will phase in a form of MF as a layer above 35mm, premium product and price.
Here is a head spin, could it be that DX as we know it will be dropped longer term, 35mm FF relegated to the former DX position and MF will be the new FF position............LOl.
Nikon has invested into acquiring RED for a lot of reasons we don't fully know about, Video, cinema, MF, are all on the white board, as is growth and opportunity, Nikon has the larger diameter lens mounts, i think Canon has something like that's as well, i could be wrong.
The only thing Nikon needs to do is phase in a larger sensor body, so easy to do, Fuji is an example of how to do it.
i think its all very possible and very likely in the very near future, technology allows for it and the market needs it.
We now have Smart phones becoming super sophisticated, they destroyed the lucrative compact camera market, their chewing into the DX market slightly and for non action or non long distance frankly their eating into the 35mm market.
Phones are competitive in stills and especially video, we have DGI killing surfing sports action especially for myself and other areas with Drones, the optics will only get better and better. Go Pro is getting better and better. Drones using Smart Phones shapes up top be closed loop, shoot, record transmit all in real time is the pathway.
The internet is growing in video, 35mm needs to get serious as PaK Man is on the heels already.
Sony took the bit between the teeth and seized the opportunity jumping through the window where Nikon was sleeping and gave us mirror less, Bravo.
Fuji is ahead in the lower cost smaller MF game so far.................watch them swing from the yard arm, so ships ahoy LOL.
2025 will be interesting.
Only an opinion