The latest issue of Japanese magazine Famitsu confirmed Earth Defense Force 4 is arriving next year for Xbox 360 and PlayStation 3. The game was first teased back in July. This new game features online multiplayer, according to the magazine. For now, it's still not confirmed whether or not Earth Defense Force 4 is coming to North America or Europe.
Famitsu also posted a number of screenshots from the game on its website if you want to check them out.