Okay, here's a more pessimistic expectation: - Panasonic will release the GH5s as a camera that will have a native 4K sensor, resulting in about 1 stop more light sensitivity and 1 stop more dynamic range, and perfect Vlog compatibility (since the Vlog curve was designed for cameras with higher dynamic ranges than the GH4 and GH5). However, lack of oversampling will result in a less detailed image with more moiré problems. In addition, the camera will cost a hefty premium over the GH5, cate