Star Trek: Nemesis is a nature-versus-nurture argument. Shinzon of Remus is a man of his circumstances. Picard, obsessed with his bloodline throughout the series (Family) and film franchise (namely, Star Trek: Generations), believes he comes from good stock. In this movie, upon learning that Shinzon of Remus has a biogenic weapon, starts looking at pictures of himself. This is Picard's hubris, and they should've made it his fatal flaw. Have us, the audience, emotionally invested in Shinzon and his calls for peace, by not introducing him in darkness, and raping Deanna, save for his contempt for the Romulans. Picard, trusting Shinzon (and losing the "I need your blood to live storyline"), turns on him and unceremoniously kills Picard--in the middle of the movie. This reveals Shinzon as a "bad guy," where he has been a conflicted, good guy, up-to-this-point. Have it move the plot along, too. Like the reveal of the biogenic weapon is Picard's death, or something like that. The Enterprise-E senior staff, his "Family," as stated in the Wedding scene, has to learn how to overcome their grief at losing their patriarch, and defeat Shinzon's plans to destroy Earth. This would've been a death unique to the movie, as opposed to the re-hash of Spock's sacrifice in II, and explored a topic they never had to before--that parents die and the children must go on without them--if we are to live successful lives.
This franchise has played it safe for too long, and if they had done it this way, I don't think Star Trek would've ever had the re-boot movies--full of tropes, re-imagined greatest hits, and its only improvement being stylistically.
This franchise has played it safe for too long, and if they had done it this way, I don't think Star Trek would've ever had the re-boot movies--full of tropes, re-imagined greatest hits, and its only improvement being stylistically.