Hot on the heels of EA confirming the game are the first details from Dead Space 3. They come from IGN, who note that there is drop-in drop-out cooperative gameplay in the upcoming sequel.
The site notes that series protagonist Isaac is joined by another man in an engineering suit. He has red glowing eyes, and works as a guide in single-player. Players will work together by sharing ammo and healing each other. Co-op will also make use of improved telekinesis power to solve puzzles as well as interact with the environment.
IGN has further information on changes made to the bench, enemies (humans!), weapons, and more.