Spoiler: Ward is Hydra!
Hail Hydra!
Skye is Daisy. Her mom is Jiaying and her dad is Cal. They are both crazy. Jiaying turns Skye/Daisy against S.H.I.E.L.D. and Cal is a serial killer.
Coulson dies like 7 times.
Coulson comes back as a robot.
Agents Mack and Bobbie are working undercover at S.H.I.E.L.D. They are part of the "Real S.H.I.E.L.D."
"Take a deep breath. Calm your mind. You know what is best. What is best is you comply. Compliance will be rewarded."