Tightened requirement for tourist visa since May 2012 ?

Our family ( in Toronto ) is going back to Hong Kong in August and from to join our extended families ( in HK ) to a china tour offered by one of the HK travel agencies. I am concerned about when we apply for our tourist visa here, we may have difficulties showing the newly required support documenuts regarding hotel and air ticktet reservation. At this moment I only bought the return air tickets from Toronto to Hong Kong.