This comes from a Siliconera interview with Bravely producer Tomoya Asano...

"Bravely Second expands Luxendarc, but it might be slightly different than an 'RPG with an expansive world you can explore'. Rather, it will basically be like Bravely Default in that it will be driven by the story. Thought processes change depending on the goal of the game, and with Bravely, the thought process is that characters are there for the gameplay and the world is there for the characters."

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Source: Siliconera