They often try to include topics that are relative (and kinda trendy) in a way. For example the UK is in a recession at the moment so expect questions to do with the UK's economic activity and how it affects the costs to small businesses. Remember, is there is a low interest rate, there will be more consumer spending and less saving. In terms of how and what to revise, it never too late to do 2 or a few of the latest business exams and mark them. as long as its not 'cramming it in'. It is also very important to get enough sleep for tomorrow and to have breakfast.
I hope this helps and good luck!
moe, student.