Coulson will have a lot to deal with when the show returns, including Bobbie and Mack's plan, Ward and Agent 33's team up and Skye's powers. As if that's not enough, Skye's father, Cal, is out there somewhere seeking vengeance against Coulson for killing Whitehall.
Fitz: Well it's not good to keep things to yourself Mack. I know what you're going through. Mack: Really? You know what it's like to lose control? To be trapped inside your own body unable to tell it what to do? To watch yourself hurt the people that you care about? Fitz: Yeah. Mack: I'm sorry buddy. Fitz: It's okay.
Skye: I keep thinking Trip is going to come see me. Make fun of me for being stuck in quarantine. Call me a goldfish or hamster or something. And every time I wake up, I remember all over again. I just can't believe he's not coming back. He should not have been down there. Coulson: You both went in for a good reason. To prevent Hydra from starting a cataclysm. Skye: He was trying to save me. Couslon: He may have saved all of us. The Obelisk triggered a massive earthquake. Imagine how much worse it could have been if he hadn't destroyed it? He died a hero.