Storytelling should benefit from the lower cost of production (image acquisition, editing, delivery). The key is getting into the pyramid at the lower echelons and then progressing upwards. But, at the same time, not everyone is involved in the narrative either. There are plenty of YouTube Channels of landscapes/nature in 4K. And now you don't need a high end gear anymore to do it well. XT-3 does the trick just fine.The good news is that the demand for video content is also growing, exponentially. I believe there is still plenty of work for good storytellers. The struggle will happen for those who position themselves based on gear vs. specialty of insight.
-gl
In any case, Sigma's chairman Kaz Yamaki gave an interview to Dave Etchell of the Imaging Resource where he stated that he was more positive than the Canon chairman and of the belief that the total sales will not drop by more than 20%-25% off the current level and then stabilize there.
The problem with Kaz's reasoning was that the interview took place at the CP+ in February and the market already dropped 20% since then.
PPS. There's also an overwhelming feeling on photo forums that APS-C is dead. With EOS RP going for $1,300 with the EF-to-R adapter included, that feeling seems to be well warranted.

