Borderlands, a sci-fi FPS in development by Gearbox looks very Interesting. With 4-player co-op I'm already interested . It has RPG elements and they claim to have half a million weapons. Visual cues inform you on the type and use, you kill a bad guy take his gun, that is cool. There is no release date, but you can check them out here. And in PCGamer.
One of the things that I find most interesting are the graphics. They have the look and feel of a graphic novel. I cant wait to see this one.