While I understand this is for conversation, are you set in your cast. While I love Ewan McGregor, I would like someone who looks a bit older. Maybe Jude Law who in my opinion looks very Obi-Wanish.... And in my prequel re-write idea I had Bail Organa as a reluctant prince/treasure seeker. He would be the Han Solo type character. Always had it in my mind that Han was a lot like Bail was in his younger years... You know what they say, a girl will marry someone like her father. =) Just food for thought