New Sentai airing in 2012: Hikonin Sentai Akibaranger!!!

From Anime News Network:

The Japanese production company Toei launched a website to announce that its live-action Hikōnin Sentai Akibaranger (Unofficial Sentai Akihabara Rangers) television series will premiere this April. The story follows three protagonists who live in Akihabara's Electric Town among other otaku. When the trio learn that a malevolent entity plans to annihilate their neighborhood, they become warriors to wipe out evil — with the help of super gear created by a beautiful and brilliant genius.

The website lists several live-action special-effects (tokusatsu) and anime veterans, including director Ryuta Tazaki (Kamen Rider), director/character designer Keiichi Satou (Karas, Tiger & Bunny), writer Naruhisa Arakawa (Kamen Rider Kuuga, Spice and Wolf, Steel Angel Kurumi), and composer Kenji Kawai (Ghost in the Shell, Death Note, Eden of the East).
Bandai's Tamashii Web toy website launched a placeholder page for Hikōnin Sentai Akibaranger.

Here is the Official Website:  http://www.akibaranger.jp/