Though Jafar was ended in Aladdin: The Return of Jafar (Kingdom Hearts II), he did return during the course of Hercules: The Animated Series. In the episode "Hercules and the Arabian Night", Hades returns Jafar to the land of the living so they could destroy each others' enemies. As a possible plot point, Hades could escape from the pit of souls in Kingdom Hearts III and bring Jafar with him. It would be fantastic if Kingdom Hearts III was centered around some powerful Disney villains such as it was in the first Kingdom Hearts.
Though Jafar was ended in Aladdin: The Return of Jafar (Kingdom Hearts II), he did return during the course of Hercules: The Animated Series. In the episode "Hercules and the Arabian Night", Hades returns Jafar to the land of the living so they could destroy each others' enemies. As a possible plot point, Hades could escape from the pit of souls in Kingdom Hearts III and bring Jafar with him. It would be fantastic if Kingdom Hearts III was centered around some powerful Disney villains such as it was in the first Kingdom Hearts.