I am pretty sure based on public facing comments plus rumors MS is not interested in a Pro console this gen (perhaps foolishly, but time will tell). However most laughably Phil used a "wont somebody think of the developers" argument against pro consoles, when he already foisted the hated Series S on them. But that's besides the point, just that with 52 CU's it seems like a hefty enough overclock combined with more cooling, a bigger case to fit more cooling, etc could deliver a Series X pro on the same SOC, with very minimal reengineeering. Essentially a drop in pro solution. In fact it would be interesting to think about what if they didn't rebrand, and the beefier overclocked SKU just became the new base Series X at the same price point.
Again though moot point, I am 99% sure Phil does not want a Pro this gen.