Part of me feels like the movie should have been something like Casino Royale... James Bond "coming of age" because in his first mission/foray into being a 00-Agent, he learns things the hard way and gets emotionally destroyed by Vesper Lynd. There's that great line in the movie that Bond says to M -- "the job's done and the bitch is dead."
Again, I haven't seen the movie yet, but the trailers portray Han as this happy-go-lucky up-and-coming associate who's about to make partner in the firm. Admittedly, being a "hot shot" is quintessential Han Solo, but there is a reason Han is (for lack of a better phrase) an opportunistic asshole by the time A New Hope rolls around. Every anti-hero has a backstory of getting their heart broken or their dreams crushed. They become hardcore realists (as opposed to idealists). The line "never tell me the odds" is the most realest thing a realist could say because they're basically saying "f--- the odds."