After seeing AOTC, I thought the perfect title for Ep3 would be: The End of the Jedi Think about it in terms of the whole story with the other titles and it makes a lot of sense. "The End of the Jedi", then "A New Hope" and finally, "Return of the Jedi". Return of the Jedi refers to Luke of course. All of the jedi were either dead or hermits until Luke appears on the scene, so he IS the return of the jedi. Remember, the original title of ROTJ was going to be the Revenge of the Jedi. Although... I guess that could be construed to refer to Anakin too.