It hasn't been officially revealed but by now, it seems like a foregone conclusion.
And if you're excited about a new Dead Space , you've got to check out all the rumored details for Isaac Clarke's next harrowing adventure.
The report features everything from multiplayer to weapon information. Firstly, Dead Space 3 should have drop-in, drop-out co-op play; in this case, Isaac's partner in crime will be some mean-lookin' dude with a scar on his face, a RIG of his own, and glowing red eyes. Apparently, he's the hero's guide in the single-player. The co-op should "mirror the single-player campaign" but interestingly enough, the story will change to accommodate the co-op aspect, so the two experiences won't be identical. Working together will also be essential.
As for the weapons and upgrade bench, you should anticipate some changes. For instance, the default weapon, the Plasma Cutter, will be a little different. It used to be that the alternate fire for the gun was shifting from horizontal to vertical line fire but now, the alt-fire "has a similar knockback effect to the Force Gun." Furthermore, the Pulse Rifle might have saw blades as a secondary fire, which might actually make the Rifle useful (hated that freakin' weapon).
Feel free to read more; just bear in mind that none of it has been confirmed yet. We can't wait until Dead Space 3 becomes a reality!