Lets see, ANH Death star accesories made:
Cinema scene 3 Pack (Han, Luke and Chewie), Death Star Chasm, Death star Escape, FX Obi wan and Darth.
ROTJ: Cinema scene 3 pack (Luke, Darth and the emperor), FX Luke and FX Emperor.
Now all we need is a place to fit together all these things.
Im thinking of a resculpt of the vintage Death star, with a diorama ala Jabba's Palace or Cantina. The diorama would be huge, so that we can put the Falcon and in a not so distant future the Imperial shuttle.
Now if a Toy company has reputation of making cool playsets thats hasbro. Remember the USS Carrier from the G.I. Joe line??
Come on hasbro we would buy it!!!! Even if its made in parts.