In the Raven leveling mission when you fight the titans donna troy starts in her old skin and then when the fight ends she switches to her new skin. Not a huge thing but it's something I noticed.
In the villain version of the Hell's Doorway open world solo in Robinson Park, Donna Troy sort of gets turned into a demon. Her normal outfit is one of the new Amazon suits, but when she turns into a demon, she's back to wearing her cosmic shirt.
During the 1st boss fight with the Titans, Donna Troy's NPC model switches from OLD to NEW. When she's evil...she uses her OLD NPC model. When she's defeated...she uses her NEW NPC model.