If you have an 8/8 pro then there is literally zero reason to upgrade, cameras are essentially the same, battery is the same, screen is 0.1" bigger on the Pro XL than last year's pro.
The processor is less than 10% quicker than the G3....
Between the minimal changes and this release being mostly about AI which people generally don't care about along with a pretty hefty price increase there's not much incentive to change.
Also next year the chips are rumoured to be much better so I expect most are holding out for them.