The cover of the March issue of Monthly Shonen Ace, on sale 1/26, will announce that Sora no Otoshimono (Heaven's Lost Property) will be getting a third season.
The advertisement below appeared on TV today, with a readable copy of the cover seen at 0:11 in the Youtube version below:
The announcement had previously been teased by Kadokawa in a separate Youtube video which announced that a "New" (written using the kanji for breasts) project begins which would be announced in the March issue of Monthly Shonen Ace.
Sora no Otoshimono has so far had two TV seasons and a movie which aired in theaters in Japan last year, all which have been licensed by FUNimation for home video release. The first season was released in December while the second season is scheduled for March on DVD and the movie does not yet have a date in North America.
Updated: Fixed/updated details