If their Pro model is to go by, it should be the same. If it's a patch and not a re-release. A full re-release is probably more dependent on the game publisher and not MS/Sony.
Sony mandated that developers can never ask for money for Pro upgrade patches and MS did the same.
https://www.polygon.com/2016/9/9/12861310/ps4-pro-4k-hdr-patch-fee
Sony mandated that developers can never ask for money for Pro upgrade patches and MS did the same.
https://www.polygon.com/2016/9/9/12861310/ps4-pro-4k-hdr-patch-fee