Sue Rostoni has posted several items on the OS boards about the 9-book post NJO trilogy:
Expect to see — Star Wars. We very much want to go back to the pulp Space Opera feel of the original movies (as opposed to hard SciFi). The focus will be character-driven situations, set against a backdrop of perhaps not galactic proportions, but certainly providing opportunities for spectacular space battles and lots of lightsaber action. Expect to see the major characters (Skywalkers and Solos) and many of the minor characters (Jedi Knights), and some old favorites. And, hopefully, a lot of surprises.
And on Ben Skywalker:
He’ll be 13 when the series begins and one of the main characters.
Added bonus info – the name of Jim Luceno’s post-Episode 3 hardcover will be Star Wars: Dark Lord.