Namco Bandai is readying a new PSP converson of Rurouni Kenshin. Although without a final name at present, the new game will be released this summer. Access its teaser site here.
The Rurouni Kenshin franchise previously saw a PSP conversion in March 2011 through Rurouni Kenshin - Meiji Kenkaku Rouman Tan - Saisen. Like that title, the new one is said to be a fighting combat game. Namco Bandai has yet to share further details.