Another example...
GT6... I'm loving the game but you saw the huge list of future features?
http://www.gran-turismo.com/us/products/gt6/
In the "Update" part (bottom of the page) you see the best and innovative feature will be release with a post launch path:
+ Community
+ Quick Match
+ B Spec
+ Course Maker
+ Data Logger
+ GPS Visualiser
+ Mobile Devices
Some of these feature are truly next-gen like the GPS Course Maker.
PS. You need to buy the game... it is a 9.9/10 experience... even the old tracks seems new and exciting.