Rose in The Waters of Mars Trailer?

People have been saying that if you look closely at around 0:23 on the new Doctor Who trailer shown at the Comic Con, a woman who looks like Rose is shown holding a baby!
As it was such a fast clip, nobody can be sure but could it be? We have seen pictures of Billie filming for the christmas specials, could she also star in the Waters of Mars?
Watch this video and see for yourself...

WOMslowvid
by combomblog

Credit goes to FanaticalWhovian for making this video :)