This afternoon, Junkie XL revealed on twitter that he met with Hans Zimmer and Jason Bonham: https://twitter.com/Junkie_XL/status/302918155368554497
I assume the meeting was for Man of Steel, but I'm not sure. For those of you who don't know, Jason Bonham is a drummer and is the son of John Bonham, who was the drummer for Led Zeppelin and was considered to be one of the greatest drummers of all time.
Jason is also a great drummer, so if he's drumming for Man of Steel I'm very excited to hear what he does. It looks like the score (or at least part of it) will have some epic percussion.