Sherif, who has worked with Panasonic for years and was hired by them to make GH3 and GH4 videos for promotional purposes, seemed really disappointed with Panasonic's response. For those that didn't watch, Panasonic indicated to him that they were satisfied with the performance. That's not to say they won't try to improve it in the future (my words, not his), but I too am disappointed by that response. Panasonic has always felt like the company that listens and cares about their users (except for autofocus lol.) They absolutely should not be satisfied with this performance.
There are still advantages to M43, and it does have a dedicated user base. As much as I like my new S5, I really appreciate how compact my M43 kit is even more. I think we'll continue to see a slowdown in releases compared to 2014-2017, but I think we'll still see more M43 cameras down the road.