From the game-play trailer, Anthem is set in a futuristic, apocalyptic, open-world were the remainder of humanity lives in fortified outposts known as "Forts", built to protect us from the "wilds"; I guess nature won. Most of humanity stays within the walls, yet a few "Freelancers" go out in mechanized suits known as "Javelins".
*Unique Javelin classifications such as Ranger and Marrauder
*Can fly (or glide?)...they have jets or thrusters (sp?)
*Can submerge under water
From the poster, we expect the game to support cooperative groups of four. This is from a poster, so take it with some salt...or a lot of salt, you salty vets!