Tim Kring reveals: The upcoming second season will constitute a new volume in the multi-volume series, with new characters and an entirely new storyline. "If you remember, the opening of the pilot pronounced the episode as the beginning of Volume One," Kring said in an interview. "Volume One comes to a conclusion at the end of episode 23, and Volume Two starts with the opening of season two. And Volume Two is a different story." Kring added: "We could have new people and new storylines and new ideas and new threats and new bad guys and new heroes. So I would prepare the audience for that idea, that it's not just a continuing serialized storyline about only these people. It's a little more the 24 model than the Lost model." Kring also confirmed that some of the current heroes just might not survive this season, but added: "Many of your favorites will live to fight again." Source: Sci Fi Wire

I understand that killing off characters kind of gives a show an edge, but I feel that Lost has killed off so many characters, it's just getting old. I hope Heroes doesn't lose its damn mind and kill off too many folks.

In fact, one episode this season takes place 5 years into the future, with all of the Heroes dead