[Origami]

Very interesting topic.

I prefer the narrow start. I like a game that gradually builds, expands and introduces new game elements. Especially in JRPG's this is a welcoming game design since the complexity of these games can be a little overwhelming would you be able to access all gameplay elements right in the beginning.

But another argument would be that it keeps the game fresh. The player could consider the new gameplay/unlocked area as as rewards.