For the Kansas City Royals, the starting rotation is nearly finalized. Whether the rotation is the same by the end of the year is another story though. However, right now the rotation consists of Brad Keller, Danny Duffy, Jakob Junis, and Ian Kennedy.
While Kennedy has quickly become someone fans are critical of and pushing to be moved to the bullpen, I don’t think he will to start the year. If he struggles to stay healthy or have success, then maybe he is moved. But for now, he will be marked as the 4th starter.