I read episodes 7-9, years and years ago. Basic concept is that the Empire is broken but some of the pieces are still thrashing around. Eventually what's left of the Empire gets it together, and the "Rebellion" (now in charge) needs to have a big ol' fight and stamp them out. Hijinks ensue.
The only thing that was really memorable about the stories were a couple of the new characters. "Grand Admiral Thrawn"...new big bad guy...and his pet assassin "Rukh".
Otherwise, I thought that the books were pretty repetitive. Lots of the same combat, over and over again. Might translate well to the big screen, who knows.
Do they have any 6 yr old expert fighter pilots who can wipe out the entire enemy force by repetitively flipping a switch?