According to presepe news, the second OVA of Air Gear
was announced to be released on March 17th 2011. It will be bundled with the manga volume 31 limited edition. The original manga chapters "Kogarasumaru versus the former Sleeping Forest (Part 1)" in the 24 and 25th volumes will be animated.
The first volume
will be released on November 17th. Judging from the subtitle "Air Gear Trick 2", there will be more OVAs.