GungHo released a few screenshots of Lunar: Harmony of the Silver Star, a PSP version of Lunar: Silver Star Complete. Compared to the PsOne version (right) the sprites are much larger and there is a Tales style display with character portraits next to status information.
Game Arts, the original developer is handling the conversion, and will have Lunar: Harmony of the Silver Star ready for Japan in the fall. While officially unannounced Xseed might be picking this up for North America.