Well after the Mando cameo in S2 finale, they invested in better de-aging tech and even hired a Youtuber who was posting deepfakes at the time, one of which was a 'better' version of what Disney put out:
Which is ultimately what led to the vastly improved appearance of Luke in Book of Boba:
And I wouldn't necessarily call it "soulless" as Mark Hamill gave them his blessing and confirmed his participation in these cameos. His acting, his body movements, his reactions, etc. were all used as a point of reference for the stand-in and the CG that was applied in post.
Now I wouldn't go as far as to say that we'll see
more of younger Skywalker moving forward, in the form of a series of something, but I can definitely see them bringing him in for another cameo down the line. Perhaps a version of an older Skywalker just starting to grow out his beard?
Especially if the creatives behind these new series are leaning on the legends novels, such as Heir to the Empire, Luke does have a significant presence in those (of course) so it stands to reason that what the characters in Ahsoka are dealing with, at some point, aligns with what Luke is up to which results in a new cameo. Not against that at all, especially if Hamill continues to be involved.