There seems to be a lot of interest as of late regarding the Panasonic GH4 successor. The GH5 as it is rumored to be called has to do a lot of things right in order to please current owners. For many the GH4 was the best Micro 4/3 camera ever produced; with crisp 4k video that seemed to push resolution so high that the Canon DSLRs stuck in 1080p land could only dream of.
The GH4 also introduced 96fps 1080p video which turned out to be better than 720p but hardly 1080p worthy. Furthermore it ignored recording audio in that mode which many cameras with higher frame rates like 120fps could keep the audio no problem.