UPDATE October 25th: The firmwares mentioned below are officially released, ready to download here
Panasonic Lumix DC-S5 Mark II and S5 Mark II X will soon gain the ability to shoot handheld 96MP 8-second long exposure modes thanks to a firmware updates (version 2.2 and 1.3 respectively) that are scheduled to be released on October 24th, similar to the new G9 Mark II's 100MP mode.
In addition, AF-Point Scope function to magnify the focus position during AF and the ability to magnify the full screen mode display in MF Assist up to approx. 20x will be added with the same updates. The updates will be available to download from Panasonic’s Lumix Global Customer Support website starting at 6 AM Pacific Daylight Time on October 24, 2023.