According to the new rumors suggested online that pretends Sony currently applied their utmost efforts in work of brand new Raw engine in order to use this technology in their upcoming new A7rII.
These are the words given by an anonymous source to the sites:
“As far as I have understood it, the A7R II is still just 36MP, with IBIS, better ISO and speed. It will come with some other features, we’ve been told :)”
Though, the news of announcing the A7rII, A6100 and new RX cameras are also in air and that are within mid May and end of June.
source – sonyalpharumor.com