After looking at all the rumors and releases coming and analyzing my biggest issue with the current A7r and A7 with the Sony Adapter 4 working with a long lens like a ZA 70-200 is my AF points to get where i want and no matter what backup I use i will run into the same issue be it the A6000, Rumored A77 replacement and the A7 i will still run into the same issue because of the adapter. The only way around it is the new 70-200 FE lens that can take the AF all the way to the edges.
So no matter how you slice the cheese it comes down to a lens issue as the A7 is certainly fast enough for my needs both in shooting speed and AF capabilities as far as tracking and nailing the image. Seems like the RX10, A6000 are all going to be a compromise over the A7 since I think it does everything right. Sure the A6000 might be faster but no vertical grip and maybe not built strong enough to withstand some hard usage and more important long lenses. Now the A6000 maybe very unique as a travel cam and even a backup where it may not be as critical but as I sit here and think about it the dang A7 and A7r are a really nice combination together. Same batteries , same grip , same settings essentially. So for me Im on a holding pattern on trying to replace the A7 for fast work as i think its just a matter of getting the longer FE glass and even the 24-70. Been just thinking on how to get the 24-70 without putting out extra money I don't have since i shot my 2014 budget in a about a week with 2 brand new expensive lenses plus accessories. I may just have to knit a new ski mask.
Im also into a more robust camera and size and weight don't really mean as much to me as i am used to having so much bulk and weight over the years. Although this kit is smaller and lighter and like that benefit for sure. But you get too small and too delicate a system that can lead into some trouble with durability. Its a fine line for sure. But those are my thoughts at least and thought I would share.