Rpg's at least for console don't usually get demos pre release, Dues Ex was a perfect example of that, the PC guys got one but console users didn't.
Also since multiplayer I believe has been ruled out for this game, that would probably make it even more less likely that there would be a demo. Since most demos nowadays seem to be online multiplayer demos. There seems to be more of a fear factor with dev's and publishers with releasing demos for there games, especially for single player games, since so many are being rushed and delivered with terrible glitches and problems, that I think that there scared that there "rushed" demos would reflect that. Killzone 3 lost hundreds of KZ2 vets and fans and preorders simply cause of there demo alone and the post patch nightmare that it's still going through.
Anyways I'm getting a little bit off topic but I myself would like to see a demo for all platforms if the publishers gave the dev's enough time to make one.
