Just posting to let you know that the 2012-13 update is in development and is due to be completed in early October. The 2012-13 update will have some new leagues including the Chinese Super League. There will be a partially-complete (i.e. still containing 2011-12 data for smaller leagues) but fully-working release available before then.
You can follow the latest progress and contribute in this thread: http://www.sensiblesoccer.de/forum/index.php?topic=1356.795