User blog comment:ArtDraw12/TD Theories: Who May Return in Potential Future Seasons?/@comment-1037137-20160612185954

Courtney is an absolute must. Major character who after four seasons still has yet to receive any lasting development or anything to show for her time? That's gotta stop.

Gwen and Scott also need to be back, and not just because of the story they share with Courtney, but also for themselves. Gwen's become so confusing and Scott has not seen his full skill realized.

Sierra as well, it's time for her to actually grow beyond being Cody's cling-on.