A7SII and RII are really in a different weight class than GH4. Full frame, low light, etc.
However, making a JVC LS-300 type mounting and an s35 sensor isn't that difficult from the technical point of view. The catch is that Panasonic would have to deliver a cropped 4K image, which LS-300 does not. In fact, should GH5 have the 24 MPX sensor, it would have a 6K-into-4K video in s35 exactly like A6300 but then also offer various crops down to the MFT or even smaller.
Will they do that? Uh, no way. They've got lenses to sell too, you know.
However, making a JVC LS-300 type mounting and an s35 sensor isn't that difficult from the technical point of view. The catch is that Panasonic would have to deliver a cropped 4K image, which LS-300 does not. In fact, should GH5 have the 24 MPX sensor, it would have a 6K-into-4K video in s35 exactly like A6300 but then also offer various crops down to the MFT or even smaller.
Will they do that? Uh, no way. They've got lenses to sell too, you know.
