http://www.mstarz.com/articles/26572/20140221/walking-dead-season-4-spoilers-carl-michonnes-emotional-journey.htm

According to this article, we're going to get a much sadder look at what happened to Michonne prior to the outbreak. Going to see her son killed, and Mike and Terry die too maybe?

"Claimed" will apparently focus on Rick, Carl and Michonne again. I was kind of hoping the episode could switch between all the different groups. It makes the episode feel fuller and not go by so fast.