Namco knows what the gamers want: Dark Souls. So on October 5, they'll be hosting a Dark Souls II closed beta on for PS3. You know, months before the game is actually out.
Granted, beta could mean you'll run into a lot of problems, but it's still a chance to play the game early, and you'll be helping From Software out in the process by acting as guinea pig.
Now, about getting into the beta. Starting September 5, Namco will be flooding the Dark Souls IIFacebook with news and updates about registration, not to mention additional information about the game. At that point, you'll know what to do.
Good luck, and try not to explode with excitement.