One of our sources just shared this image to confirme the new 3.0 firmware for the A7rIII and A7III will be released on April 11. These are the expected new features:

Firmware Ver. 3.0 for α7R III and α7 III

Sony’s popular α7R III and α7 III full-frame cameras will both receive enhanced Real-time Eye AF performance with the upcoming firmware version 3.0. This will be available in AF-C mode with a simple half-press of the shutter button. Real-Time Eye AF for animals (i) will also be available.

The cameras will also receive interval recording functionality that will allow for simple creation of time-lapse movies (vii). The new feature can be set for anywhere between 1 and 60 seconds, with a total number of shots from 1 to 9999. AE tracking sensitivity can also be adjusted to “High”, “Mid” or “Low” during interval recording, allowing for reduced changes in exposure over the shooting interval.