As of my last knowledge update in January 2022, I don’t have specific information about the Sony A7IV, as it may have been released or had details emerge after that date. However, considering the trend in Sony’s Alpha series cameras, an anticipated successor to the A7III would likely bring improvements in various aspects relevant to video production.
Typically, with new iterations, one could expect advancements in sensor technology for improved image quality, potentially higher resolution for video recording, and enhanced autofocus capabilities. Sony has been known for incorporating cutting-edge video features, such as 4K recording with advanced color profiles and high frame rate options, into their newer models. The A7IV might also feature improvements in in-body image stabilization, customization options, and overall build quality. For the latest and most accurate information on the Sony A7IV, I recommend checking official Sony sources, recent reviews, or reputable photography and videography news outlets for any developments or announcements that may have occurred after my last update.