Overall Apple is still paying attention to most of the pro markets they did in the past. I think the only gap is the photography market where Apple doesn't have the full stack solution anymore after Aperture went away. Lightroom ate their lunch, though it still benefits from all the work at the OS level for RAW support and such. Video wise, Final Cut X is still seeing a healthy development cycle. I've gotten 2 or maybe 3 major revisions for free since buying it back in 2012. Logic Pro X is also continuing to see support and updates.

And yeah, at this point the Macbook Pros can handle 4k video production decently for at least field work, and the current 2013 Mac Pros can be where the big thunderbolt storage is at for in office work and more CPU threads. Odds are the next Mac Pro will be aiming for 8k as that begins to enter the scene. H.265 is appearing more and more to succeed H.264.

Marco had a good writeup this weekend summarizing hours of talks on his podcast, and it breaks the needs of each pro market down a bit, by linking to various pros that have written up there needs recently.
https://marco.org/2017/04/15/mac-pro-audacity-of-yes

Techcrunch also posted the full transcript of the meeting here:
https://techcrunch.com/2017/04/06/transc...pples-pro-macs/

Apple has said a lot of the right things here. Their first chance to show actions back these words is later this year with the launch of the iMac Pro, and the Mac Pro a bit after that.

I for my home use would likely be served fine with an iMac Pro, assuming macOS adds Thunderbolt GPU support officially. My 2008 Mac Pro is still going strong mostly due to NVidia continuing to write drivers for newer video cards that I've slotted in over the years. If I were to add a USB 3 card as well, my system would be VR ready. Though single threaded performance is a bit of a hinderance too, and it's amusing to see the iPhone 7 beat my Xeons in some benchmarks there.