Preview at WWDC likely in June, followed by September launch.
Apple to Launch Third-Generation iPad in China on July 20
In China the new iPad will be available through the Apple Online Store (www.apple.com), select Apple Authorized Resellers and by reservation from Apple retail stores. Reservation requests will be accepted daily from 9 a.m. to 12 p.m. beginning Thursday, July 19 for pick up the following day.
China has rapidly become one of Apple's most important markets despite a slower-than-expected retail store rollout, and the launch of the latest iPad has been highly anticipated there as it debuted in roughly 100 other countries before making its way to China.