Quote
Due out in Japan this November, the game features higher quality graphics and the new "Air Raider" class introduced in Earth Defense Force 2025, as well as four-player online support and over 400 weapons.
http://ameblo.jp/sinobi/entry-11912577530.html
Translation: http://gematsu.com/2014/08/earth-defense-force-v2-announced-ps-vita