That is correct.  For the player characters, Sorcere students have been attending 20 years out of their 30 years.  Arach-Tinilith students have been attending 40 years out of their 50 years.  Only the player characters playing students attending Melee-Magthere, are "new" students.<br/><br/>New students to all schools are still entering to all three schools (as always, think of it like any other school with new students and classes always starting as well as graduating), however they will not be your "graduating" class.<br/><br/>Only the other player characters are in your "graduating" class.  As in ten years, when the new Melee-Magthere class finishes their training, so will the current Sorcere class, as well the Arach-Tinilith class...thus placing all player characters in the same "graduating" class.