It has been subtly suggested in some character edition videos in YouTube.
I looked deeper into it and seems that the ESRB rating would force games which can adjust body shape to be have M (or higher) rating, but the way around it is allowing the body customizing indirectly (like in this case changing the face type)
Currently only Elezen an Hyur have this "option" Miqo'te won't change no matter which face you choose and Lalafell well... Lalafell is just out of the question.
Edit: forgot to add, Body shaping is considered by the association a "Sexual theme" that's why it will push the rating to M.
Edited, Sep 8th 2010 1:16am by kenage
____________________________"Maybe it means: you're the evil man, and I'm the righteous man, and Mr. Nine-millimeter here, he's the shepherd protecting my righteous *** in the Valley of Darkness."
- Jules. FFXIV: Mabel Rand (Gugnir)
FFXI: Kenage, retired.