I happen to like MSJ's take on the character, so I'd keep him as the director. However, Ben Affleck really was the wrong choice to play Daredevil. Someone like Jamie Bamber (Battlestar Galactica) or Orlando Bloom would be a better choice. Jennifer Garner did fine as Elektra, IMO, but she's probably too old now to be a believable love interest for Matt Murdock if Bamber or Bloom were playing him (especially Bloom), so if I was going to recast her, I'd cast BSG supporting actresses Nikki Clyne (Cally), Luciana Carro (Kat), or Leah Carins (Racetrack) in the role. I think Bullseye and The Kingpin were perfectly cast, so I'd keep Colin Ferrel and Michael Clark Duncan in those roles. In terms of the story, here's what I'd do:
- Keep Kingpin responsible for Jack Murdoch's death, but in a more peripheral way (in keeping with the character as portrayed in the Spider-Man animated series from '94)
- Show Matt being blinded as a young man and track some of his training, and then show him meeting Elektra at college
- Have the adult Murdoch trying to nail Fisk/The Kingpin on two fronts, both publicly in the courts and as Daredevil.
-In the course of trying to publicly convict Fisk, Murdoch runs back into Elektra and they rekindle their college romance.
- When Elektra's father goes back on a deal he made with Fisk, Fisk decides to teach the elder Natchios (sp?) a lesson by going after Elektra, and siccs the assassin Bullseye on her. Daredevil gets involved by rescuing both Elektra and her dad, putting him on Fisk's radar. When Fisk realizes that Daredevil is responsible for busting up a recent 'deal' that went south, he tells Bullseye to 'finish the job on Natchios' and then go after Daredevil.
- Daredevil once again interrupts Bullseye's attempt to kill Natchios, but only after Elektra tries to take on the cold-blooded assassin and pays with her life. With Bullseye having killed the woman he loves, Daredevil kills HIM.
- Murdoch traces Bullseye back to Fisk, and goes to confront him, They get into a fight, but Fisk reveals that his obesity is a ruse and beats the crap out of Daredevil before escaping
- Daredevil goes to visit the people he's lost who are close to him, and makes a vow to take Fisk down at all costs