1. The Governor
Speaking of the comic book versus TV show timeline: the most shocking thing about the end of season 3 wasn't Andrea's death, but the fact that the show didn't kill off the Governor. He's still out there, presumably plotting another move against Rick. There is no indication thus far of how he will be reintroduced this season, or if he will come back at all. I believe he will eventually surface and will be more f**ked up than ever. And when he does it will be time to give the audience closure and kill him off in a wonderful and creative way. Michonne may finally get a chance to exact her revenge for what happened to Andrea. I'm excited to see how he's dealt with on the show, because the comic book version of his character more brutally tortured Michonne and Glen, and also cut off Rick's hand. He also met his demise at the prison, getting overtaken and eaten alive by a mob of walkers. If the additional source material from the Rise of The Governor novel comes into play, who knows what direction they'll take on the show. Now for 5 characters they shouldn't' kill off...