Han and Leia had an incestuous crush. Or was that Luke and Leia? It was Leia and somebody, anyway.

ROTFLOL. It was Luke and Leia. They didn't know they were siblings when they met. Han is everyone's favourite rogue with a golden heart whom Leia ends up with.

So, you didn't know what cadesama and self meant when we speculated about Heroes pulling a Return of the Jedi ending of the season. Which they did, to wit: Vader (aka Anakin Skywalker) redeems himself by sacrificing his life to save Luke (and the galaxy) when Luke is about to die at the hands of the Emperor (the lightning-zapping dude, who's the ultimate bad guy in that universe. So, confounding expectations which were that Luke as the hero of the original trilogy would end winning the day via a duel Luke actually wins the day because he's the only one who believes there is still some good left in his father, who believes in Anakin/Vader, and thus saves Anakin's soul, while his father is the one who saves the day in terms of action (killing the Emperor at the expense of his own life).

Hence our, err, non-surprise when Nathan, etc.