Perhaps a kwami becomes human and tries to use their new form to protect their chosen holder in a more direct way. But they soon realize that being human also means having human weaknesses and they have to be careful not to expose their true identity. They could start to understand the human emotions of fear and vulnerability more deeply.
A more emotional plot could be about a Traci trying to find her 'sister' Traci. She could go on a long journey across Detroit, encountering different characters along the way. Some might help her, while others might try to use her for their own gain. This would be a story full of suspense, hope and despair.
Another idea is Kara getting separated from Alice and Connor during their journey to freedom. She then has to rely on her own wits and the kindness of some humans she meets along the way. This could lead to her having to make difficult decisions, like whether to trust a human who seems friendly but might be leading her into a trap. It would be a great exploration of her character's growth and her ability to adapt in tough situations.