Call it the new Xenosaga. Just as the Xenogears team left Square to create games in a suspiciously similar world for Namco, some of the tri-Ace staffers who made Radiata Stories are working on ... Radiant Historia for DS, over at Atlus. Along with original staff like artist Hiroshi Konishi, Atlus's own developers are also involved, including director Mitsuru Hirata, a veteran of the Shin Megami Tensei series.
With only a Famitsu leak to go on, all we know about the game itself is that it involves time travel in some manner. If you want to find out more by playing the game, you'll have to time travel to November 4. And learn Japanese, we guess.