I reckon Glenn with Abraham as a red herring. Possibly Daryl, they've been weaning the show off the character all season, but usually you'd have a 'goodbye' episode for a major character and we didn't have one.
And what's wrong with Maggie? This may sound terrible but I hope that baby doesn't survive. A realistic portrayal of pregnancy loss on tv would be welcome for once and the chances of a baby surviving when she's that sick and has a fever for so long with no treatment is slim to none. I hate ridiculous pregnancy recoveries.