Robin Hood Heading To Metropolis?

Zach Snyder is rumored to be interested in having Kevin Costner for a role in his "Man Of Steel" reboot. It's not specific which character he's going for, wether it's a good guy or a bad guy. It's most likely gonna be a bad guy. I personally think it's gonna be the role of Lex Luthor. Just shave Costner and he'd look good.