Oliver will be having nightmares about things happening to Emily more than likely involving Ambriel and Davian being cruel to her. Also old nightmares could return about him hurting those he cares for.
Thérèse is primed for nightmares about Dallas breaking her heart as well as memories of Rory.
Bushara will be having nightmares about becoming as bad as her mother. This will lead her to be a bit less bon vivant.
Kana... she will likely set fire to her room. Anyone want to play around with that?
Jamaal I have no idea what he would have nightmares about other than possibly his family being hurt.