According to All Games Beta, Disgaea 4: A Promise Revisited will receive a Western release on August 12th of this year. This remake of Disgaea 4 will feature HD graphics, along with new battle & strategy elements. Bonus content has been added to the game as well, in the form of exclusive new scenarios. There will also be new characters and appearances by characters from other Disgaea games. There will be a new tier of spells, new techniques for jobs, and other general enhancements to the gameplay. Disgaea 4: A Promise Revisited includes all of the DLC from the PS3 release. The PSV version also includes the option to have Japanese voiceovers.
Source: All Games Beta