Board Thread:General Discussion/@comment-24588369-20140504180040/@comment-24141773-20140518072310

John Nemo wrote: Personally--and this is just my own assumption, it's not a matter of preference--I think that they will most likely bring Margaret back if Mordecai is going to have a girlfriend. I believe this mostly due to the fact that Margaret is/was a major character introduced in the first few episodes, and after four years of having her on the show, writing her off without reason just seems... pointless. But it wasn't without reason; Margaret was there for Mordecai's character development.

She was actually never a stand alone. Whenever she was on scene, she was there because of Mordecai. She has really little to her, besides that she was his love interest.