Is Neo becoming immortal?
When neo first fights morpheus he is punched a few times and bleeds from the mouth. Then he fights Smith in the subway and is really bloodied in both the matrix and real world but after he dies he does not seem to get hurt much. He fights smith in the burly brawl and is smashed into brick walls a few times but when he emerges into the real world he does not have any blood from his mouth or anywhere else. And in the chateau fight seen, he stops a sword and it barely draws blood. Then in the revolutions trailer he fly's into smith at break neck speed. I am assuming that he survives that encounter. In M1 smith told morpheus that this is about evolution or something to that extent. Is Neo evolving into immortality?