On the Xbox 360 Ego Draconis is 6gb (going by install size).
Link Hmmm so drop 2gb off FoV for arguments sake and that would make it around 3gb (probably smaller considering it still has to fit onto a 9gb disc).
Unless DKS is a two disc set I can't see the DLC being that large on consoles. If it is over 2gb I'm willing to bet it's marginal if DKS comes on just one disc.
Soon find out when I get around to installing it tomorrow.
