Phantasy Star Online fans should be pretty pleased with SEGA's new Phantasy Star Online 2 Vita trailer. It's very long, and presumably rather informative. We can't say with 110% certainty, because we're not native speakers of the Japanese language.
Anyway, what we do know is that the combat is going to be totally stylish, and something about special packages. You'll also hear (and see) some stuff about the various classes in the game.
Like PC version, Phantasy Star Online 2 will be free to download and play. Both versions will be compatible, meaning cross-platform play, for both multiplayer and character data transfers. That's really not too shabby.