Resources spent = increased quality = more MAUs. You don't think it's strange that they aren't investing more heavily in the expansion's final tier, the big Emerald Dream patch fans have been waiting requesting for years? It's a great chance to bring players back, and to retain current Dragonflight players.
Not that it has to have all-new assets, it's just an odd step away from the norm. 6.2 re-used a zone for its final patch, but Legion, BfA, and Shadowlands all brought something new.
Anyway, my point is that I think it might lend a little bit of extra credence to the revamp theory. Re-using assets in this patch so they can spend those resources on 11.0's assets instead. It might not have felt like a worthwhile investment to make new assets in a revamp that doesn't really feature otherwordly zones.
On a slight tangent, I also find it pretty interesting that there seems to be a clear difference between Kalimdor / Night Elven assets, and Emerald Dream / Night Elven assets. Night Elves are supposed to be magical and fae-like because of their connection to the Dream, right? So why does Ashenvale look more mystical than the Emerald Dream? I'm thinking of the assets introduced in the remade WSG, back in BfA.
The Dream, I think it's safe to say at this point, has a much more toned down look. More realistic colours. Just like Val'sharah. Sure there are some swirlies and a few rays of moonlight scattered about the place. But it looks much more like a regular forest than Ashenvale does. Ashenvale feels more similar to Ardenweald.
Is this just a historical glitch caused by the fact that 10.2 uses Val'sharah assets, made before they updated classic Ashenvale assets in BfA? Or does this say something? Is northern Kalimdor and its forests even more enchanted than the Emerald Dream, and if so, why?
Has Elune had a bigger impact on Kalimdor? Was the Dream so altered by the Titans that much of its original magic got lost (or vice versa with Kalimdor)?
Is northern Kalimdor more or less reflective of Ancient Azeroth than the Emerald Dream?
Great Tree portals scattered around vanilla zones obviously use Teldrassil and Ashenvale asses, but that might just be because they were designed in Vanilla, before Val'sharah was a thing. Or is it because the Great Trees are more of a Night Elf thing, and not directly from the Emerald Dream?
Is Ashenvale influenced more by the Winter Queen than Elune? So many questions.