Blizzard has released a preview of Dracthyr customizations and animations.
Dracthyr CustomizationsThere is no confirmation yet, but it appears to be that the Dragon Form doesn't change for male and female characters, but the Visage (Humanoid) Form does.
Dracthyr Dragon Form Full Body Dracthyr Dragon Form Headshot Dracthyr Female Visage Form Full Body Dracthyr Female Visage Form Headshot Dracthyr Male Visage Form Full Body Dracthyr Male Visage Form Headshot Dracthyr Animations Dance Fly Run Stand Walk Wave Dragonflight Expansion RevealDragonflight Cinematic Reveal Reveal Livestream Blog Sign Up for Dragonflight Beta ArtDragonflight Key Art Primalist Tier Set Concept Art Expansion FeaturesDracthyr Evoker Class/Race Combo Dragonriding Flying System Read more on wowhead.com