I was thinking about that new villan and all that I could think of was ULURU (please refer to graphic novels) but I've been wrong before. the plothole i hated at the end wasn't the fact that Sylar never used TK to stop Hiro from stabing him I can even forgive DL surviving a gun shot but Niky kicked Candice a$$ and she shifted back to the fake image of herself and not to the real one.
Again too bad for Nathan, but we still aren't entirely sure he is dead....