Not much longer now, til the
third Sayonara Zetsubou Sensei TV series will leave its fans in despair, with nothing more to watch. But relax, it won't be an excruciating wait this time. With 3 more episodes still left from the ongoing season,
word is a second OVA is already being prepared for release this autumn. Titled
Zan Sayonara Zetsubou Sensei Bangai-chi, its first DVD volume will be bundled with the manga version's 19th volume, out in Japan this November 17.

There will also be a second DVD volume released at a later date, but that particular date has yet to be announced. So for now, that's about all.
I wonder how many people are still hanging on to this series. Not that there's anything wrong with it - far from it - but it somehow lost me somewhere around the second season. Too much pausing in mid-playback to read all those random kanji blurbs hurts continuity. And as any lazy guy will tell you, continuity is good, mkay.