Oh, she was unpopular, but not disliked. It was more in the sense that she wasn't "best girl" or have fans, etc... to a lot of people. Most posters would put Josy always in the middle of the road, because she was likeable, she actually has no flaws and even after 0.4, if you notice, people only hate on her because of the Maya situation, not because of her personality. Even in the looks department, i think she is the one closest to my "type", but her lack of screen time and because of how muted her presence in the game was, even now, she is seem more as a second fiddle to the Maya drama, made people just don't care about her.
That's why i don't see her going up in popularity much unless DPC really focus on her in some capacity. So i do see the possibility of Maya regaining her fanbase, but not of Josy creating hers.