The apocalypse has been delayed to January.
Earth Defense Force 2017 Portable, has been given solid release dates for the West. North America will receive this alien-demolishing title a tidbit earlier, on the 8th of January, and it will be digital only. European Vita owners will be able to get their hands on a retail release along the digital release and the game will launch on the 16th.
Earth Defense Force 2017 Portable is a remaster from the original (EDF 2017) and will contain new enemies, over 230 weapons (including new ones). The biggest addition is the option of online play. Both 4-player coop and versus mode will be available for you to enjoy.