He guys, i'm lovin heroes so far too. 1. I was reading a Heroes forum somewhere and people were talking about the guy worse then Sylar. They had two possible names that they said where from one of Isaacs comics. I dont remember that from the show but they swore on it. 2. I'm assuming Nathans dead. I think he just got really upset with being called "Villian" and "un-trustworthy" so he changed his attitude and decided to sacrifice himself to help his family and others. 3. Hiro is always talking about Kenshen so when Sylar was throwing him around and he teleported i guess that the first thing he thought of so thats where he ended up. Thats just my theory. I agree with OriGin that he will probably get some training or at least advice or mentoring of some sort while in that time peroid though. 4. I read in some interviews with the cast that the next season is going to focus on a whole bunch of new characters and keep introducing people into the show. So hopefully with new characters, plots, relationships and questions answered from the first season it will stay fresh and interesting. From what i've noticed watching a lot of other series they usually start to go down hill at or after season 3 so im still looking forward to an excellent season 2 and hopefully 3 before i lose interest.
