4. Afro Samurai —
There has already been two screen appearances which featured the wayward warrior: 2007's 5-episode anime TV series and 2009's made-for-TV movie sequel entitled Afro Samurai: Resurrection. The character itself has "Emmy" written all over it, but creating a live-action movie would be epic. It doesn't even have to go that far to make an impact because the animated has equally proven to be worth cinephiles attention.
But if there is any validity to take away from the 2006 Comic-Con where it was said that a live-action version of Afro Samurai was in the making then it is a project that we'd happily keep our eye out for.