Originally posted by osv the a7rii has only been out for a few weeks, the technology it utilizes is far beyond any dslr that's ever been on the market, and it's a major upgrade over the a7r in a number of ways.
Now imagine you have this A7r-II:
- it take great photos with all the stuff you'll could need (like any decent cameras)
- it add some features other cameras already had like SR.
- it support 4K video. (but some Smartphones already do it for 10% of the price like the One Plus One).
- it weight the same as a DSLR (K30/K50/K-S2)
Now what the future?
For photos the camera has it all except a few gimmicks like astro tracer, pixelshift and alike. Not sure people would buy next generation for that.
8K video? That's many year away and honestly, that will not be a game change at all because even 2K video is enough in many occasions. Distributions vectors are almost all 2K or less now. Often this is 720p or even sometime SD. 4K is cinema resolution and I never heard anybody complaining that cinema movie quality was not great enough. Anyway if you are serious about it you might buy a RED camera or equivalent.
The issue is it depends of your exact needs. Depending of your exact requirements, taking good picture and videos was solved few years ago already. This is nowhere a game change like film vs digital or MF vs AF.
Now Sony FE really lack the native lenses and could maybe hope to sell new lenses when they comes... But only from people that don't do like you and use MF anyway. I would agree their growth is to have a real native FE echosystem they are lacking now and that would motivate people to invest into it. On the other hand theses peoples that are not satisfyied with current Sony offering are buying from other brands and might think the model they just got as good enough for quite some time... And might be unwilling to switch because they invested a lot in the echosystem. And that's assuming they can't be happy with latest greatest of the other brand.