It`s normal for developers to not add some created pieces into the final stage.
But according to that article, the amount of deleted content seems pretty large. The 360 is obviously to blame. Here comes the question: would SquareEnix choose money over loyalty?
We all can hope that the deleted content can be part of DLC or the international version. True, they said that the international version may never happen, but it`s possible that they`ll change mind.