would never happen. the modern generation of gamers expects each new title to have "awesome graphics dude" so if that's not upgraded it's instantly considered crap. The industry and public as a whole are extremely brutal if a game does not add a new feature or game mode or something to that effect and usually several of them. bottom line is if you simply make it a more polished version of the original you failed to innovate. If you add new features or changes to a game you strayed too far from the original and fans groan.