According to Famitsu, the Xbox Live Arcade exclusive Dead Rising 2: Case Zero will miss its original Japanese release date of August 31st.
The reasons for the delay aren’t mind blowing; Capcom stated that the DLC game is delayed due to certain elements in the trial version not being appropriate enough for a free demo. While details haven’t been given on what these elements are, Capcom assures the problems will be eradicated.
Unfortunately, no word has been given yet on a new release date, nor has anything been said on whether this will affect the Western release of the game. Look to hear more about this in the future.