Hyperdimension Neptunia Victory II or, as Compile Heart abbreviates it, Hyperdimension Neptunia VII is in development for PlayStation 4. The game is a direct sequel of the last PS3 role playing game and has three different dimension each with their own story.
This trailer has clues about the Hyperdimension chapter. The video flashes keywords like person who controls the gold crown, secret society, and transformation of the world. Another clue is the "new ruler of Gold Sade."
Hyperdimension Neptunia G: Gold Bellwether – Gamindustri’s Existence Transformation shown at the end is part of Hyperdimension Neptunia Victory II which is scheduled for release this year.