Here are the first images of the upcoming Sony A7C II, leaked in China Youtube. It is scheduled to be officially announced on August 29th, 2023 along with Sony A7C R and FE 16-35mm F2.8 GM II lens.
From the images, you can see Sony A7C II is not much different from the current Sony A7C, but there is an electronic dial on the front. Also, the dial on the right shoulder has no indication of exposure compensation, and it seems that a switch for switching between S&Q, video, and still images is newly installed at the bottom of the mode dial. 
Rumored Specifications of Sony A7C II:
- 33MP sensor (same of the Sony A7 IV)
- Bionz XR, AI processor
- 5 stops IBIS
- 10fps
- 100-51200 ISO
- 10 bit 4k60p, S-Cinetone
- 2,36 milion dot EVF
- 3 inch LCD screen
- 759 AF points
- Lens breathing compensation
Read More 2023 Sony Camera Roadmap