Manga creator and character designer Yoshitoshi ABe (Serial Experiments Lain, Haibane Renmei) revealed at Washington's Sakura-Con 2009 last month that he is developing a new anime called Desperant (デスペラント), but he added that the project will not be made public in Japan until around May 20. ABe is working with many of the same staffers with whom he created Lain. The story is set in Japan's Taishō era about a century ago. Since the project has not been officially unveiled in Japan, ABe did not detail the story further, but he did present an imageboard drawing and sample work from the project.
None of you have any idea how happy I am right now.