Teaser video of the un-aired episode of Steins:Gate started streaming on its official Nico-Nico Douga channel
Said episode is titled “Okobakko no Poriomania” or Rampant Poriomania and it will be included in DVD/Blu-ray box of volume 8 for Steins:Gate that will come out on February 22, 2012.
Steins:Gate Unaired Episode Trailer – Youtube version
The story is set a few months after the last scene of the television series. On a calm day in Akihabara, Okabe and the other laboratory members are invited by Faris go to America. Mayuri and the rest are planning to reunite with Kurisu, who had come back to an American laboratory. A few days later, Okabe’s mad scientist persona Kyōma Hōōin arrives alone at the airport in Los Angeles, where he may be taking the first step to leading the world into chaos. [ANN]