I got an anonymous message saying that Panasonic will officially announce the new GH5 firmware update today at 4pm Berlin time. I have been told Panasonic already displayed some banner about that at the IFA in Berlin. The bad news is that the firmware download will be available by late September only. UPDATE: A Spanish site confirmed firmware 2.0 is coming and later removed the news.
And as pointed out by Almuhannad on our GH5 facebook group…Winter is coming :)