Spoilers for Captain America and previous eps of AoS.
Usatoday has the scoop that in the remaining six episodes our ragtag group of agents in will be in a shield civil war where no one knows who is a hydra threat or an actual shield agent.
Also teased is another betrayal on Coulson's team. And how now that there isn't a shield the team is going to be sorely lacking in resources. There is much more at link I'm writing this on mobile while waiting for Cap 2 to start, yup I'm watching it again :)