Fans have thought that this season was already brutal, with the death of Hershel, as well as the girls, Mika and Lizzie in "The Grove" episode. So to hear that there will be another tragic death hurts a little bit. As it has been explained several times, anyone could be the one to die. Kirkman says that he makes characters earn their deaths by becoming popular and gaining a fan-base. Once they do, then you could die at any time.
Beth is still missing from when the priest's car drove off with her, and we might not see her again this season. So far, the only group that has made it to Terminus is Bob, Sasha, Maggie, and Glenn. It doesn't seem likely that any of these guys are going to be the ones to go since, "all live who reach Terminus" but something tragic could happen.
Kirkman also says that there will be the cliffhanger of all cliffhangers that will bring season five right up to season four and make it the hardest wait of fan's lives. Could it have something to do with Beth's kidnapping?
What "savage" thing do you think will befall "The Walking Dead" cast in the season finale?