Jeff Zeitlin's work on the Antares and Fornast sectors has been incorporated, at least as far as routes go. Massilia routes are from TD #11.
So as far as routes go, things are getting pretty complete. A little bird told me that someone is doing development in the Gushemege/Dagudashaag/Ilelish/Zarushagar areas, so maybe those will be pieced in soon. Really, that just leaves Delphi, Diaspora and Verge as 3I sectors without routes.
Of course, then there's actually making the routes make sense and/or line up.