river song interview on DS

If you watch the interview with river song on this site she talks about her book from silence in the libary and when she talks about the previous meetings wiv the doc she mention the crash in the forth coming ep and mentions the opening of the pandorica as past events, but when watching that ep back she doesnt metion it, so im guesing if she knows about it then she will appear in the final eps or again this series and is part of the arc......?????