Well, we were expecting more but we get what we get.
Firstly, this is all Panasonic gave us:
The GH6, which is currently under development, aims to achieve both the mobility unique to Micro Four Thirds systems and a variety of video expressiveness. Both the sensor and engine have been newly developed to support 4: 2: 2 10bit Cinema 4K60p video recording, and we plan to achieve unlimited video recording time within the recommended operating temperature. I’m really sorry that I can’t tell you in detail, but please look forward to what kind of camera the GH6, which is still under development by engineers, will be finished.
And this is what Olympus gave us: