Ain't It Cool News has spoken with Thomas Tull at Legendary Pictures, one of the executives mentioned in the original story and he debunked the news that Goyer would pen the reboot.
Here's the update the site posted:
So just a while ago I just got off the phone with Thomas Tull at Legendary Pictures who told me that the story that appeared over on LATINO REVIEW just frankly isn't true. Tull has not unilaterally hired Goyer to come in and write the new SUPERMAN. He loves Goyer, but frankly - the project isn't at the Script stage yet. Seems Nolan is still hatching some ideas. But he just wanted me to pass on that they have the highest enthusiasm for this project, but the story on Latino just isn't accurate. I'll see what more I can find out, but as of right now, there really isn't anything else to tell.
Source: MovieWeb.com