Board Thread:Spoilers!/@comment-4877635-20150304180627

Episode 20 is name "Mother" and written by Jane Espenson.

Source: https://twitter.com/AdamHorowitzLA/status/573171182821752833

I think the title has to refer to Cora. Everytime Regina has a scene with her, she seems to say "Mother!" I think they did a kmontage of all the "Mother"s on the Villain bonus feature for Season 3 DVD. :) 