Hello!
I was somewhat active on the previous translation forum and may have an answer for this. The issue with stars appearing instead of characters has something to do with the character library. Since the library is Japanese characters it is all stored as picture files and while those...
if they get permission from 4j (the studio who helped put minecraft on consoles), they could put the console edition tutorial worlds in the game, as seeds
and i mean all of them (if not, maybe a few highlights, like TU1, TU31, and TU69)