Expressions on the char screen, a new background and some foreplay scenes with Madame. All things that make the game better overall and add to the complete experience, but not huge additions on the surface. I understand that the really exciting stuff like the addition of new stances, additions/improvements to the combat/sexfight system, and the strong femdom sex scenes can't happen every update.
I would add, please don't too far the other way and start having Hiro dominate every opponent, or being able to overpower the strongest creatures in game. Some of us originally supported this as a rare game where you get to be the reluctant sub for once! Im definitely happy with all the progress so far, keep up the great work!