Board Thread:Show-Related Questions and Answers/@comment-26569765-20160515144204/@comment-24674051-20160523170948

True, however, any changes to the core 7 characters (Lana, JMo, Ginny, Josh, Robert, Jared, and Colin) would probably only occur if the actor does not want to continue. Emilie and Bex, as much as I enjoy their characters, are in the category of characters that could be considered expendable, though neither would likely would not be killed off.

I would guess if the show starts to show signs of going past 7 seasons, there may be some changes to be made in the core group. but at that point, it would be more likely that characters would be sent to the land of the forgotten (where Ruby, Whale, Tink, Aurora, and the rest currently reside) to make room for new core characters and new stories.