Hello, first time poster here!
Maddie is having a boy.
http://www.usmagazine.com/entertainment/news/sister-wives-maddie-brown-and-caleb-reveal-babys-gender-w460419
I am somewhat surprised at Maddie and her need for attention by announcing everything via US weekly and for being such a big part of the story line. Expect her to be more private, like Logan. Perhaps has something to say about the lack of attention she received growing up.