Seconded!
Screenshots seem to indicate it will be made out of plastic.
Can you share the screenshots you are referring to? Btw, the boxart from the Preorder page was recently updated (the "Games for Windows" logo is no longer visible).
GalCiv2's retail box was made out of paper, and although I never got Demigod, the pics I found online (http://cache.g4tv.com/ImageDb3/144053_S/Demigod-Collectors-Edition.jpg) seem to indicate that its box was too. Of course these are older titles, so I'm hoping that Stardock has followed in [most of] the rest of the industry's footsteps by abandoning paper packaging.
Side note: I know this is a trivial issue compared to the game[play] itself, but I still thing it's important to voice our opinions regarding all aspects of the game, especially since Stardock has always been open to community feedback. It seems that there are people here that agree with me, which I'm glad to see. Thanks for letting me and (more importantly) the devs know.
Would anyone from Stardock be willing to chime in?