I feel like DLD is the only one on this forum who gets excited about 8K
No I would get to replace my GH5 but keep the GH5S. My main reason is to give even more opportunity for crop/pan /zoom for a 1920x1080 timeline which is what I want and now use my GH5 and GH5S in UHD . No real interest in even 4K output at the moment.