At this point in the series, I'm interested about Mr. Drewe & Edith's SL. Will we see Bricker more? Because I like fresh faces on the show too just as long as they bring some needed SL progression for some characters.
I kind of want to root for Thomas to have a proper SL as well but it looks like this whole thing with Baxter/Molesley will linger on. I'm eager for more Violet/Isobel interaction too. This whole business with Lord Merton/Dr. Clarke is fun to watch (for me).
Very lukewarm on Mary's love life drama as well as Tom/Sarah's friendship. Hoping too that Rose has a better SL this season. I'm also cautious about Bates/Anna and Daisy - which would probably mean with all this education, she's bound to leave Downton soon?