There are 4 reading passages, so I assumed that one of them is additional. Like how I did during GMAT test, I spent too much time on first few reading passages and didnt have time to finish the last one. As for listening, there are totally 34 questions, I don't know how many of them are additional. Over all, I think listening and writing are pretty easy and I am little worried about my reading.
I know about listening including 34 questions, 2 sets, is quite traditional. It means no additional questions were included in the listening part to us.