There hasn't been anything official mentioned on what is up with the Xbox version of the add-on. Xbox Live wasn't required for the main game, so hopefully it wouldn't be needed for a single-player add-on, except possibly a one time activation (more than that would be copy protection taken to a stupid extent, IMNSHO).
Downloading to the Xbox isn't a problem for me, but I have to string an ethernet cable across the room, so I'd rather not play anything that required an active connection (I've got an old router I might be able to use as a bridge... I'm not paying $100 for a wireless adapter, in any case).
Welcome to the forum.
