It looks like Marvelous is porting their PSP music game, Bakumatsu Rock, to PlayStation Vita. A listing for Bakumatsu Rock: Super Soul popped up in Rakuten, but was quickly taken down.
The Vita version is slated for release on September 25 and will include a drama CD as a bonus. A limited edition with an original video animation, special box, and a priority ticket sales for a Bakumatsu Rock live event will also go on sale.
While Xseed passed on releasing Bakumatsu Rock in the West, this series is starting to grow into a new franchise for Marvelous. Beyond the PSP game, there is a Bakumatsu Rock anime series and manga.