Danny Archer character
Ten years on-it may be a little too late.I think Leo's Archer would've made a good character on his own.
Not even a prequel,but a film centered on the soldier of fortune Danny Archer.DiCaprio did a good job with the character and would be able to carry a whole film with him.
The story of Archer growing up on his own and then joining the ranks of the Colonel,becoming a ruthless killer would've sold.Leo may be too long in the tooth for the character now-but there is CGI