Okay,I only know a tiny bit of Japanese.I downloaded a thing off of the JA PSN and it was PDF 2nd,it was 167 MB.So I'm curious is this a demo for the vita? Because I've seen several vids of poeple playing a demo of it on YT.
As far as I know, nothing else about Project Diva F 2nd has said to be released, so it is most likely the demo, yes.