Mnementh on 12 July 2014
Well, it obviously works for Mario Kart. Adding new tracks over time would be great. It doesn't work for Zelda in my opinion. Zelda has a story arc that is completed after the main game. What will you add? After you saved the world you will help out this village with a haunted house or something? Everything after the main adventure would seem lame.
Metroid might work. Samus is a bounty huner, additional content might contain smaller bounty hunting episodes between the main adventures.
