You wanna talk about a company that lives by the "delay", take a peek at Ubisoft. They cant announce a release date without eventually pushing it back.
IF we do in fact see one or more new consoles by this year's end, I won't be suprised to see a GTA5 enhanced edition pop up along launch time. It could help sell consoles and fill the launch lineups.
The delay only makes the waiting more painful.