Earlier quoted context omitted.
Maybe it's wishful thinking, but I don't believe this will happen, and unless I'm mistaken, there's absolutely 0 evidence for it. People are usually attached to the artist when it comes to music. You buy a Bowie album because it has his name on it. You learn about them, look forward to their future work, maybe go see them live, etc. Will computers replace EDM and elevator music? I don't know, maybe, who cares?
Counterpoint: Hatsune Miku
You can't generalise to pop in general, because being a pop headliner is as much about glamour, lifestyle, fashion, and branding as it is about music.
No one wants an imaginary Bowie album, because it's a glamour-free proposition - a curiosity at best, most likely irrelevant.
People have been trying to make an Idoru for decades for now, and they always fail. You can only sell fantasy and identification when they're implicit. When you try to attach them to an artificial marketing concept it becomes impossible to suspend disbelief and make the fantasy stick.