The Metal Gear Solid series has always allowed players to stealthily make their way through the games without killing a single fool. The upcoming Metal Gear Solid: Rising will continue this proud tradition when it is released next year. At Gamescom today Konami confirmed that we'll be able to slice our way to the end of Rising without killing a single human.

Originally Posted by 4zb41

I'd like to point out that the title is now "Metal Gear Rising: Revengeance".
It's subtitle is "Lightning Bolt Action".

The game isn't supposed to be like Metal Gear Solid. Thus they have no need to stick to the tradition of the "Tactical Espionage Action" subtitle as we have seen in all of Snake's games.

HOWEVER, the game is now being developed by Platinum Studios, not Kojima Productions so my expectations for the game have plummeted. The game itself has now been ostracized from the Metal Gear Solid series.
Feel free to shout "HAH!" now.