The following is an excerpt from OU.
Recent reports of Sonny With A Chance writing Demi out of the script due to her treatment are TRUE, a source of ours confirms. The show is said to be focusing on the show within the show, So Random. It would be just like the Halloween Episode featuring small skits here and there of the current cast, without Sonny. Due to the fact that Sonny is no longer in it, producers and scriptwriters find that including Sterling Knight would be difficult since the integral part of his character was being Sonny’s love interest. He would serve no purpose to be on the show So Random due to the fact that his character’s on the rivaling show, Mackenzie Falls. The source also reveals that Sterling is currently in search of acting roles to keep him busy in the mean time. Sterling’s part as Chad Dylan Cooper is up in the air, but may be written into the script again per Demi’s return to Sonny With A Chance.