I love that the game is going somewhere instead of just stalling endlessly. Book four is the logical conclusion, and the included characters make sense.
Personally I am not a fan of the sexual fetish of book four( pregnancy, muscles, and I don't know what you would call toph's daughter, maybe mature), but I understand that this is a several chapter development, and my taste of pornography has already been meet in the previous books.
I can't stress how exalted I am that the game is moving along, that the progress doesn't suit my specific taste is secondary. If the goal was to cater to my specifics, I would wish for customization of Korra like in book 1 and 3 to create more of a pornstar aesthetic and less of a realistic one.
Asami and maybe the none male Inuit sister are probably my only hopes of classically sexy characters from this chapter.