all patches were aimed exclusively at the story and performance, but not a drop on the gameplay. Do most likely there will be no changes, they will just do dls and everything, at the most they will add selected mods to steam as officialRespawning enemies and random world encounters would be enough, but it seems CDPR doesn't want or was unable to implement either.
Even better would be actual dungeons with complex layouts and a boss fight at the end, that would eventually respawn for some nominal amount of loot. A few generic enemies standing around outdoors feels kinda jank and not very engaging. Witcher 3 had the same issue, except even worse, so there is hope for improvement.