With the advent of truly powerful graphics cards, and efficient 3D cel shading engines, there have been a number of cel shaded “H” games released in japan. Additionally there are many non cel-shaded 3D “H” games as well.
Non Cel Shaded
Sexy Beach 1-3
Artificial Girl 2
Cel Shaded
Realtime Lovers 1-2
This is as many that I know about, but with every one the hacking/modding community is beyond just simply active. There are full fanslations of Sexy Beach 2 and signifigant progress on Realtime Lovers.
What are the odds that a commercial company such as Peach Princess will attempt to add these games to their inventory? I can only imagine that the demand would be astronomical.