Honestly, I wouldn't mind a wondermail generator for this game eventually. After sinking over 200 hours into the game, the generator was a cool way to turn it into more of a sandbox experience. I assembled many teams of characters from my PMD fanfiction.
But it would be perfectly fine with me if it didn't come out in, say, a year from now. Wondermail generator isn't as bad as an A-OK generator, but it's about half as bad: rewards for rescues don't mean anything anymore, and neither does crawling through the depths of Zero Isle for the rare items, when you can just generate any one you want. I'd like to enjoy the game as it was originally meant to be played for a while before opening it up like that.