They should do what the Sims 2 did:
both, they had a cd version and a dvd version
But I think they should just do it in dvd because of the advanvements in technology and eventually a game is going to push all gamers to upgrade and throw away the cds, kind of like those big floppy disks that didn't hold very much, 6" floppys or something like that.
Why not, Darth Vader, common knowledge here, means Dark Father in German, so why not have another character whose name means something in relation to it?
Back on topic...
In the latest issue of PC Gamer that I have, it says specifically "You'd think these Sith Assassins would be cheerier, seeing the galaxy through those rose-colored lenses."
It says that on a picture of the PC fighting a dark jedi and two of these other sith.
Sorry to disappoint you.