Third Season of Sora no Otoshimono Confirmed (EDIT: Replaced by a Second Movie Due 2014)

According to the cover of Monthly Shonen Ace magazine March issue, the third season of Sora no Otoshimono was announced.

Source: Cover of Shonen Ace

Story by ShiroiRyu

Sora no Otoshimono 3 on MAL

Update
Third Season of Anime 'Sora no Otoshimono' Replaced by a Second Movie Due 2014