Yes. Please. (and since I was planning on hitting up your post, too...) I could see these two building some kind of alliance/working relationship/friendship. Yen is holding onto a lot, especially coming into the game and Moiraine's overall calm demeanour will help put her at ease.

Also, Yennefer can totally be that person to challenge Moiraine and make her smile. But she might cause her to scream in frustration.