Spoiler - Question re season 4

!Re-watching S04E09 - Gloves off. I have so many questions regarding season 4, but this one I really have trouble with. In the video, which Ellen made the night before they all went into Witsec (i.e. when Neal was 3), she says the key in her locket will lead Neal to the evidence box. My question - how did she know then that she was going to hide it in the Empire State Building, and manage to get it made so that Neal would have to stand at the pier at which he was going to nightly just before his capture by the FBI, over 20 years later?!<