Could this be used to generate simple missing characters in Western fonts too? For example many nice fonts are missing Greek letters (useful for science), punctuation or diacritics.
In something I've been writing lately, I've wanted to be able to use certain typefaces, but they lack mathematical symbols or characters. It's something I run into repeatedly. Earlier today, before I saw this post, I was thinking maybe I should just add them, because they're open source, but then when I saw this I wondered "could you just do this with an autoencoder or AN or whatever?" It seems very doable. There are typefaces with them; the issue is creating the missing characters for the typefaces that don't have them, but have other characters.