My first post here. Wanted to thank you all for keeping this site active and interesting! It's been a great source of information and inspiration for me. Hopefully, I'll also be able contribute to this avid community.
I've been using Panasonic since 2017 (G85 at first and now G9), thus the possible future release of GH6 interests me also. A lot of wishes regarding the GH6 have already been mentioned. Nevertheless, with the announcement of BMPCC 6K Pro, I remembered that one of my wishes with the advent of HDR video recording has been the availability of HDR screen on camera. I shoot all videos in HLG mode with intent to deliver the final product in both HDR (HLG and/or HDR10) and SDR.
Therefore my wish or expectation for GH6 would also be the implementation of HDR monitor. With 500 nits being the bare minimum and 1000 nits possibly being the sweet spot. Yes, I understand that it would impact the battery life. But the prospect of being able to properly expose the HDR footage would out-weight the necessity for a spare battery, at least for me. Sure, I use HLG View Assist (mode 2 mostly) at the moment, but it's not a match for proper in-built HDR monitor. For this reason, a larger monitor (4" plus) would be a welcome addition also.
Altogether, HDR monitor together with built in ND filters (preferably up to 10 stops), internal 6K or even 8K (if the files are not a behemoth size) in future GH6 would spark my interest to consider it as a next upgrade.
Let's see what the future brings.