With next to no hope of a western release, have a peek at the heavily update Phantasy Star Nova site, with Tri-Ace and Sega revamping the online game for an offline audience. Among the many pics and snippets of information via translation is the game's new box art which looks pretty smart.
In the game, your forces end up battling invading Gigantes, which have been the focus of the few gameplay clips. It still supports up to four players, but there's more of a focus on story and progress, rather than the endless leveling in Phantasy Star Online 2. With Sony giving the game heavy support with both PlayStation TV and Vita hardware bundles, perhaps this will help kick the Vita out of its slump.