Initially the rumors were that Zack Snyder's upcoming Superman reboot would begin filming in late August. Looks like they may be moving along a bit quicker than we originally thought! Looks like instead they will begin shooting in late July instead! And...to top it off- Goyer isn't completely off the MOS-bandwagon just yet!! Read on...
"One of Hollywood’s most esteemed fanboys won’t be attending Comic-Con 2011 this week. But David S. Goyer says he has a good excuse: He’ll be working on director Zack Snyder’s forthcoming Superman relaunch starring Henry Cavill — the superhero opus most likely to be the biggest story of next year’s Comic-Con. “It would the height of irresponsibility to break away at this point to go to Comic-Con,” the Man of Steel screenwriter (also a key member on Christopher Nolan’s Batman team) told EW in an interview last week. (The film, slated for release next year, begins shooting next week.)"

As for any other pertinent information on 'Man of Steel' Goyer wouldn't share anything more...read on...
(I know better than try to squeeze you for details about Man of Steel)–
"You won’t get anything from me, other than to say that it’s been a really, really fun experience"
"Man of Steel" is due to fly into theaters for a Holiday 2012 release!
And for anyone out there who's curious, here's my source-
http://shelf-life.ew.com/2011/07/19/dark-knight-scribe-david-s-goyer-on-comic-con-superman-and-his-new-novel-heavens-shadow/