From the Shards of the Throne rulebook:
"The Ghosts of Creuss have two separate Home Systems
connected by a āDā Wormhole. Both of these systems are
considered Home Systems for the purpose of card and game
effects. During setup, the Ghosts of Creuss player only places
the hexagonal tile in the galaxy. He places the non-hexagonal
tile in front of him.
Also, the āDā Wormhole is considered a
Wormhole for the purposes of card and game effects
."
It seems to me that this will make the wormhole secret objective much harder to complete. Unless the Creuss get it, of course.
Or maybe it will just make our games much more hostile than they have been, traditionally. =P