Hyperdimension Neptunia Re:Birth 1 is coming to North America and Europe thanks to Idea Factory, as the company's International branch ups its publishing drive in the West.
The Japanese studio launched its California-based International branch last year with an eye to release its own games in North America and Europe, and first on the list is Vita RPG Monster Monspiece. We now know the second isRe:Birth 1, the Vita remake of PS3 game Hyperdimension Neptunia, and Idea Factory International says it's due to hit North America and Europe in the "late summer."
Hyperdimension Netpunia mk2 is the next game in the "Console Wars"-parodying JRPG series, and its PS3-to-Vita remake just hit Japan last week. There's no news yet, but it now seems likely Idea Factory International will also bring it to the West at some point.