According to the cover note of the novel, Narita Ryohgo's light novel "Durarara!!" was announced to get a TV anime adaptation.

The cover of the novel vol.1

Staff
Director: Ohmori Takahiro ("Natsume Yuujinchou", "Baccano!")
Series Organizer: Takagi Noboru ("Baccano!")
Original Novel Illustrator: Yasuda Suzuhito
Character Designer: Kishida Takahiro ("Baccano!", "Noein - Mou Hitori no Kimi e")
Producer: Aniplex
Production Studio: Brains Base

Synopsis:
The story takes place in a downtown of Tokyo, Ikebukuro. Teenage punks gang up and fight against each other. The gangsters are afraid of an urban legend "Dullahan" headless rider, who rides a black motorcycle without head lights nor sounds of engine. Ryuugamine Mikado is a normal high school boy who seeks peculiar beings. When He moves in to Ikebukuro, a mad scramble for Dullahan's missing head breaks out.

Official website
Source: Scan of the cover note

Cast
Ryuugamine Mikado: Toyonaga Toshiyuki
Kida Masaomi: Miyano Mamoru
Sonohara Anri: Hanazawa Kana
Kishitani Shinra: Fukuyama Jun
Orihara Izaya: Kamiya Hiroshi
Heiwajima Shizuo: Ono Daisuke

Source: Dengeki