DarkYoda
Resident Villain
The Star Wars Saga (Episodes 1-6) as envisioned by George Lucas is about Anakin Skywalker.
In a larger sense, George has also said that one trilogy is about the parents, and the other is about the kids. So you could make the argument that the Star Wars Saga is also about the Skywalkers. However, Anakin is still the center of the story... his relationship with Padme... his relationship with his son.
Star Wars is also CLEARLY a story about the Jedi and the Sith. Compellng evidence for this is the fact that Anakin (what Star Wars is about) becomes both.
At the end of ROTJ the Sith are destroyed... never to return... if they were to appear again, it devalues the whole Saga. It would be like Sauron coming back in Lord Of The Rings... what was the point of destroying the ring?
The Sith were the absolute sworn enemy of the Jedi that, apart from Anakin, were pure and unredeemable evil. Without such a strong antagonist, the story quickly becomes dull. Even if a Jedi post-ROTJ were to turn evil and use the Dark Side, this is essentially not much different than a new Sith Lord and it devalues what Anakin accomplished by killing Palpatine and eliminating the influence of the Dark Side over the galaxy.
All video games, novels, comics, etc. are all part of the Expanded Star Wars Galaxy NOT envisioned by George Lucas. He lets people play in his universe, so to speak, but he reserves the right to walk all over it if he so desires.
I honestly feel that the story Lucas wanted to tell has been told... anything more is just gratuitous... movies for the sake of movies.
Unless Lucas finds a crafty way out of this problem, there can be no Episode 7 that is compelling or that does not ruin the Saga.
However, I DO feel that it is possible for more movies as long as they are not set after ROTJ.
And I do think a TV series could explore some other stories that might be interesting.
I do love Star Wars... but I don't want to see it driven into the ground.