We've been getting a couple new ones every now and then, but we really need more hair styles for player toons and BOffs.
Males need more short hair styles that aren't hair helmets or totally bland.
Females REALLY need more long hairstyles, like Kilana from "The Ship" episode of DS9, Melora Pazlar from the DS9 episode "Melora", Counselor Troi's main haristyle from the 2nd and 3rd seasons of TNG, and Troi's main hairstyles from season 6 and season 7. I really don't understand why we have such a small selection of long hairstyles in this game.
Maybe we'll get someone from the art team to work on hair after the work on the new ESD is finished?
In the immortal words of Captain Sisko: "It may not be what you believe, but that doesn't make it wrong."