Just ran across this fantastic old school thread in the Jedicouncil forums talking about the Clone Wars. The catch? It is dated 1980. A fun read, here's a clip, read the rest at the link above:

The first three episodes will depict a much younger Ben Kenobi leading Skywalker into the Clone Wars. They take place about 20 years earlier, and accroding to Lucas, will show "the early life of Luke's father when Luke was a little boy." Since Luke's father is supposed to die at the end of the trilogy, I wonder why Lucas qualified it as his "early life"?

The evolution of Darth Vader is interesting too. In the second script, Vader started as an intergalacticbounty hunter, tracking down and murdering Jedi Knights for the Emperor. Then Vader became a Dark Lord, with religious overtones, and Lucas created Boba Fett from that early concept of Vader as a bounty hunter.

In the first trilogy, Vader is a "very young Jedi" who becomes Obi-wan's apprentice. I can't imagine any boy younger than ten going through the kind of Jedi training we've already seen, and I can't picture Obi-wan describing anyone over 18 as a "very young Jedi." In Empire, Luke is somewhere between 21 and 25, and Yoda says he is too old to begin the training. Skywalker is old enough for Kenobi to call him a "friend," probably around 25 or 30. Yoda describes Skywalker as a "powerful Jedi with much anger in him."

Darth Vader betrayed and murdered the pilot Skywalker. Obi-wan opposed Vader, and at the end of a fierce sabre duel, drove Vader into the molten lava of an active volcano. Vader survived, but his body was ruined, and he must wear an omnious black breathing mask that also hides his disfigured face. A powered exo-skeleton added a foot to his height and tremendous strength to his crippling limbs.

Too weak to face Vader again, and knowing that his fellow Jedi Knights were either disbanded, disorganized, or dead, Obi-wan his in the Tatooine desert until Skywalker's son was old enough to become a Jedi Knight and defeat Darth Vader. Tatooine was Skywalker's home, where he owned a farm before he joined Obi-wan in the Clone Wars.

How does the story end? The entire story, not just the half we've seen so far. Obi-wan, presumably seeing through the Force, has warned Luke, "Only a fully trained Jedi Knight, with the Force as his ally, will conquer Vader and his Emperor." But Luke leaves Dagobah before he completes his training, and Obi-wan grieves, "There goes our only hope." Yoda disagrees with him.

Thanks to Darth_Love for the post in PSA!

UPDATE
Erik of Dianoga tells us he's been hosting the original article forever and has a couple new paragraphs from the original as well.