LG does offer the 4K Ultrafine display in a 32" as well as 23.7" sizes so in theory, Apple could just turn the "consumer" iMac into a 4K non-Retina line. If they bumped the base RAM from 8GB to 16GB and make the ~24" base storage a 1TB Fusion Drive and the 32" base storage a 2TB Fusion Drive they could keep the pricing at $1299 and $1799, respectively.
The iMac Pro would continue at 27", but it would also continue with 5K Retina resolution and adding HDR and better brightness thanks to miniLED backlighting. Base pricing could probably hold at $4999 with the cheaper W-2200 Xeons covering the higher cost of the 5K miniLED panel.
Frankly, I'd be okay with this because while an iMac Pro is overkill for my needs, I am drawn to it because it would likely last me for a decade and therefore I could justify the higher price - plus I want 5K Retina and adding HDR and higher brightness would be benefits I would be willing to pay for.
The iMac Pro would continue at 27", but it would also continue with 5K Retina resolution and adding HDR and better brightness thanks to miniLED backlighting. Base pricing could probably hold at $4999 with the cheaper W-2200 Xeons covering the higher cost of the 5K miniLED panel.
Frankly, I'd be okay with this because while an iMac Pro is overkill for my needs, I am drawn to it because it would likely last me for a decade and therefore I could justify the higher price - plus I want 5K Retina and adding HDR and higher brightness would be benefits I would be willing to pay for.