Whizbang Dustyboots
Gnometown Hero
I don't know. WotC has 45 million different MTG worlds. I find it hard to believe that they couldn't have one with Final Fantasy aesthetics (I suspect they already have several) and then WotC could take the most D&D-like one, adapt it like they have the other settings, by making it adhere more to D&D ways of doing things, and be most of the way there.Anime/JRPG-style conceits don't work at all well with Crawford et al's keen-ness on with full caster supremacy (even if it's no longer anywhere near LFQW) and martials as being forced to be this sort of "grounded" slightly lesser alternative who just don't get to do anything dangerously cool even if they can sometimes have "big numbers". It's also why we have multiple half-arsed "fighting casters", but no full-on spellblade-type class.
As you say, the aesthetics are the big thing, but creating a human-centered campaign setting with lots of critters that would feel at home in a JRPG and with art that's somewhere between Breath of the Wild and Princess Mononoke seems like something WotC could do without breaking a sweat.
There is a huge audience out there that "undermonetized" WotC isn't engaging with. I'd rather they spread their wings (and make a more sincere effort to court the Asian market) than try to monetize with more expensive products and lower page counts.