Originally Posted by SmootheOperator
A sequel trilogy will be a completely new story line. Both the original and prequel trilogies followed the life of Anakin/Darth Vader. That was their central story. They did explore other stories, but in the end, they always returned to Anakin /Vader. Vader's story is over, the emperor is dead, and when we last left our heroes, the galaxy was at peace. where can they go without forging a new story line?
Just browsing through the SW wiki (Wookiepedia is it?) The Emperor's spirit lives on after the OT and takes over new bodies. I haven't read any book involving a Skywalker or associate character of one (The Solos?) so i'm not entirely sure if what I just said is entirely true.