Anaokar said:
I can see you've given some thought to the stories as well. I like the seeds of corruption in the rebellion idea.
What have you done? You've gotten me started on rewriting the originals! Is nothing sacred?!
Anyway, here's a more fleshed out permutation of the story:
Luke leaves Dagobah and travels to Cloud City. There he battles Vader, who questions how Obi-wan could have trained Luke so well. Vader then tells him that he is his father. Luke escapes, and then the Imperials impound Luke's abandoned X-wing. From its trajectory, and its condition compared to its trajectory and condition leaving Hoth, they conclude that it must have come from Dagobah, and so Vader travels to Dagobah alone. Meanwhile, Luke and company are rescuing Han from Jabba the Hutt, who is on an Imperial controlled world in the mid-rim, and this is accomplished by activating a pocket of rebel forces on the planet. These pockets of rebel resistance are being organized throughout the galaxy in preparation for open rebellion, and Luke forces the beginning of this open rebellion. Luke then senses an urgent need to return to Yoda. Vader has landed on Dagobah and Yoda, sensing the dark lord's presence, has retreated to the cave of the Dark Side in an attempt to mask his presence in the Force. Vader nevertheless finds Yoda, and Luke arrives just as Vader kills the Jedi Master. Luke enters the cave, and for the second time he sees the figure of Vader approaching him through the mist. He battles the dark lord again, but realizes that he cannot kill a man who may be his own father. He throws his lightsaber to the ground and invites death, believing that his true father would not kill him. He is correct, as Vader deactivates his own saber. Knowing that Vader is his father, Luke knows that he must do whatever he can to save him. Luke allows Vader to lead him to his shuttle, and together they depart to meet the Emperor on Coruscant.
From Coruscant, the image of Luke in shackles is broadcast throughout the galaxy. The hero of the rebellion, the one who destroyed the Death Star, has been captured. The Rebel leader Mon Mothma decides that the time for open rebellion has finally come for all of the planets of the galaxy, and she initiates the final assault on Coruscant.
From there, the story could continue in a similar vein as Return of the Jedi, but of course it would be cooler to make up something entirely different.