If Peter's blood can heal Nathan, that means Peter's blood has a lot of stuff going on it.
So wouldn't Nathan just get all of his abilities?
I could see the Mother and the Company keeping claire out of reach so they couldn't get more of her blood (didn't seem like there was much and Sylar took the rest)
I like Nathan a lot. But I think the stories could get a lot stronger from a death that powerful. Take a note from Joss Whedon, everyone can't have a happy ending
