You know how the old dev team stated several times chocobos would appear but in a manner different from other final fantasy titles? What do you think they had planned?
It could be that they might introduce chocobos, but only to allow quick travel between cities and camps or cities to other cities. Maybe following a set path, and allowing you to get off at will. (Similar to auto-travel in LotRO?)
Personally, I would prefer free-roaming while riding the Chocobos, or if the Stabled chocobos are auto-travel, allowing us to quest/buy a chocobo, or raise our own, to allow free-roam travel would be nice.