According to CIEL magazine, a TV anime series of manga Sekai Ichi Hatsukoi was announced to start next April following the OVA to be released on March 22nd.
Staff
Director: Kon Chiaki
Series Composition: Nakase Rika (“Junjou Romantica”)
Character Design: Kikuchi Yoko
Production Studio: Studio Deen
Source: Scan of CIEL