Today is an amazing day for NIS fans, as Disgaea Dimension 2: A Brighter Darkness, The Guided Fate Paradox, and Time and Eternity have all been officially announced for a Fall, Fall, and Summer international release respectively on the PS3.
Disgaea D2 of course is the full sequel to the original Disgaea, The Guided Fate Paradox is a roguelike similar to Z.H.P. Unlosing Ranger, and Time and Eternity is a relationship RPG featuring time travel.
I guarantee you the trailer for Time and Eternity (above) is the weirdest thing you'll see all day. You can also find trailers for Disgaea D2 and The Guided Fate Paradox below.
I've heard terrible things about Time and Eternity (such as in Japanator's import review), but I'm really excited to check out Disgaea as a long time fan, and The Guided Fate Paradox looks pretty neat.