It's all about Financial Years. For SE that is from April 1st to March 31st.
I expect:
So this FY (2009) will see DQ9
2010: FFXIII (Japan)
2011: FFVSXIII (Japan) + FFXIII (West)
2012: DQX (Japan) + FFVSXIII (West)
So they don't hurt each other at all and make sure every year sees a steady stream of revenue.







