According to Dengeki Online, light novel "Hataraku Maou-sama!
" was announced to get a TV anime adaptation. It will be aired in 2013.
Maou-sama official website
Trailer on Youtube
Director: Hosoda Naoto
Series Composition: Yokotani Masahiro ("Beelzebub
Character Design: Ikariya Atsushi ("Fate/Zero
Production Studio: White Fox
Satan: Ohsaka Ryota
Emilia: Hikasa Yoko
Sasaki Chiho: Tohyama Nao
Alsiel: Ono Yuki
Its manga adaptation
and a spin-off manga "Hataraku Maou-sama! High School!" have been serialized in Monthly Comic Dengeki Daioh and Monthly Dengeki Maoh, respectively.
Source: Dengeki Online