After two Neptune games on PlayStation 3, Compile Heart is ready for... a fifth Neptune game on PS3. Dengeki PlayStation has a first look this week at Choujigen Game Neptune V, which will be released this Summer on PS3.
The "V" actually stands for "Victory." The game is set in the 80s and apparently features improved visuals over the previous two games.
That's all we know at the moment, but Dengeki does supposedly have a full fifteen pages on the game, so we should be hearing details shortly.