Yoshida: Changes will be made to both the geography and the design of the areas. Some areas will be changed rather drastically
There are several problems with Yoshida's words, unfortunately: 1.)
"Geography and Design" is vague; adding as little as a campsite and a stronghold technically satisfies such claims. 2.)
Yoshida says "some areas," which could be as few as two. 3.)
He also says "rather drastically." Depending upon his definition of "drastic," and coupled with the qualifier "rather," this could be much less than the radical overhaul most people think is needed (maybe they'll just make Grid.'s hallways bigger
, thus changing them from corridors to "open areas!").
I could be wrong, of course; I hope I am. But would like to hear: "We're completely throwing out most of the zones in the current game and redesigning unique and detailed ones the likes of which will both inspire adventurers to explore and seem at home even in a single-player, offline Final Fantasy."
More than I would: "Some things will be rather drastically changed."