Radiant Historia was released back in 2010 on the original DS and this year will receiving a full remake for the 3DS titled Radiant History: Perfect Chronology. The title will be getting updated graphics and inserted scenes for various events in addition to a new lineup of voice actors not featured in the original game. When players start up the game they will be given the choice of two different modes, both of which include an expanded story and new characters not seen in the original release. These modes will allow players to either dive right into the new story content or start from the very beginning and work their way up to the new additions.
Radiant Historia: Perfect Chronology is currently planned for release in Japan on June 29 and has not yet been announced for a western release. You can check out the official Japanese teaser site right here.