Sinanju Light Armor (Fan art image)
Mobile Suit Gundam Unicorn Episode 7 "Somewhere Over the Rainbow" -Sinanju Light Armor (Fan art image) - not yet confirmed if this is officially going to be in the OVA.
image below was released months ago. A fanart of the new variation of the Zeong named NEO-ZEONG (Psycho-Doga) that made a slight appearance in episode 6 of Gundam Unicorn. - click here for more images