I just checked out the item description for CoP over at Amazon. Here is what they had:
Each kingdom has its own storyline - as you progress you'll enter other kingdoms and interact with new players, for all-new quests and missions
[li]New Subjob feature lets users build new skills as they take on new jobs -- and add them to their overall abilities
[li]Incredible new controls make it possible to play the game with minimal mouse use -- players can create their own shortcut keys, for using skills and abilities, emote, talk & more
[li]Amazing new character and world design - Explore 100 different, unique areas where time & the weather constantly change, as thrilling cutscenes advance the storyline
[li]Fight, explore, email and chat with other players from around the world
This looks more like a summary for FF XI in general. My guess is that Amazon had to work with as little information about CoP as anyone else, and had to put something up.