My only problem with that Burn Notice guy is that he's awful. He just can't act.
Jim Caviezal (sp?) should be RoboCop.
A big concern of mine would be the themes of the film, and how they update them. The 80's Robo was so attached to the decade (corporate ruling, cynicism, violence and lack of empathy etc). These days would have to be about peoples reliance on technology, social media,lack of faith in goverment bodies (USA, Australia, England), financial instability etc.
A bigger concern is the balance of violence and the black humour. That ***** was awesome in the original, god knows how they'd pull that off again. Fincher could probably do something like it, maybe Aronofsky.
EDIT: Haven't been through the rest of this thread, so sorry if it's been said.