OBVIOUS SPOILERS AHEAD
I don't know if these were already confirmed or not (been busy with college).
I received an early copy of the Mass Effect Art Book, and it has the concept art and descriptions for two new squadmates.
One is EDI, in a robotic form at last. She's very metallic and almost reminds me of the robot from Aerosmith's "Just Push Play" album.
The other is "The Prothean", who was in stasis for, apparently, 50,000 years.
Were these confirmed? If not, I have plenty of pictures to upload.
--Dane