Found this image in The Curbed. According to the Curbed, its a proposal by Frank that causes the client to pull out, due to unknown reasons. Here are some interesting comments droped by the readers in the Curbed:
The Pros
The Cons
Personally I think its something different, different as in at least its not another box, but then again I don’t mind building a box over that. So, does it appear rectangular when drunk?