That would be very early in the season and totally create some mega-buzz for the show. The media has seen the first 4 episodes and no leaks on what is likely the most awaited dead in TV today.....so I am hopeful, but a little skeptical that is will happen in E2.
However, how cool would it be that Joffery spends all of E1 gloating and praising his greatness and the end of the Starks and at the height of his arrogance, die in E2!