Actually, I had an idea a while back. A quasi-crossover with The Matrix. It turns out the first ever Jedi Master had such insight that he saw the life universe not as "crude matter", but as the "luminous beings" they truly are. This understanding allowed him to do virtually anything with the Force, and if he so wished it literally bend reality at a small scale to his will. He tended not to, but if he thought it necessary, he did not hesitate. Like all living things must, he died. It was foreseen by one of his first students, however, that one day he would return, to herald a new beginning for the Jedi Order. Many believe that Yoda, coming into prominence as he did near the beginning of the Order's (and the Republic's) Golden Age, was the incarnation of The One (as he is called by those few who knew the prophecy). Those fewer who know of it in the New Jedi Order believed it to be either Vader/Anakin or his son Luke. They were wrong. So now this One, whose current incarnation knows little or nothing of the Force and is surprisingly old, is brought to the current Jedi Headquarters. If everyone agrees to the storyline focusing on a single PC, it may be one of the characters...or they may simply be caught up in the ripples of this momentous occasion. If The One is an NPC and his powers are fully developed, I suggest mixing Jedi Guardian, Force Warrior, and Jedi Master levels, and if you have D&D's Epic Level Handbook, do some jury-rigging and give him more than "merely" 20 levels. His purpose is entirely up to you.