Well, technically this thread is about extras BEYOND the game itself.
While I agree about a PC/Mac version, if it will be created, it will surely be a Steam version.
Since I loathe their policy of forced game activation and all subsequent crap, and since Square had recently made only Steam conversions of their games, all my preferences go towards a console version.
By the way, if they have added Portuguese to FF XIII, I see no reason why they shouldn’t add it to the XII HD version.
That said, to stick to this thread’s subject, tell me your preferred external extra!