I think Bungie has done a great job in their games with making their female characters more than just a pair of boobs. Except for Cortana. Because she's an AI slut, not because the animators are horny. For her, it's just a digital avatar preference. (haha) And judging from the ViDoc and preview, I'm gathering that they are going in the direction of practical female armor, which looks similar to the male armor but with sizing and proportion adjustments in the hips and shoulders.