He actually can, with the appropriate program and skills. It's probably more effort than it's worth, though. Are you saying "no" because you genuinely thought it was true (in which case, you shouldn't have without more evidence), or because you didn't want to fully answer his post (which would be lazy)?
If the texture coordinates match up, though (and it's very possible they do), he could just rename the appropriate file(s) and copy all of the Nord faces to the Breton body.
@SirDavid: find and download AndyPic, find out which faces you want copied, and backup/rename the appropriate files. If I didn't feel like such crap (surgery yesterday) I'd probably go through this with you, but I'm not going to do it right now.
One more thing; you can download the Daggerfall Interactive Preview and copy the "FACE****.CIF" files over from that /arena2 folder to the /arena2 folder the full version uses. Obviously, make backups should you not like the older faces that the Interactive Preview used. These are different though, and I think they look a bit closer to Arena's style.