SCEJ have released a few new details about the upcoming PlayStation 2 Arc the Lad title. The game will be entitled Arc the Lad: Twilight of Spirits, continuing the prior trilogy. The official website so far is vague; the only story elements it's touched on so far is that the protagonist has a heavy destiny to deal with and that two worlds are in opposition of one another.
Arc the Lad: Twilight of Spirits currently only has a Japanese release date of 2002. There is no word yet on a US release. Under referring links you should find the three new pieces of Arc the Lad: Twilight of Spirits artwork.