I don't have a PS5, but I have preordered a PS5 Pro.
There have been no announcements of PS5 Pro Enhancements as of yet.
I do own an Xbox Series X.
If there are PS5 Pro Enhancements, then I will get it on PS5.
If after a year after its release, there are no PS5 Pro Enhancements and it doesn't appear there will be, then I will get it on Xbox Series X when it is highly likely released because I prefer using it as my default third-party console.