Very unlikely. First, Microsoft and Sony don't like to allow mods unless the mods are managed directly by the developer, which isn't likely. Also, anything they make available for XBox has to work on the Series S. That console is severely underpowered and trying to add mods to it wouldn't work very well, especially the larger mods that people tend to want to use.
At best, you *might* see small XML mods at some point, but there isn't any promise or guarantee that will ever happen. But it's probably the only thing that has any chance at all.