Well, if she didn't die, that was a poorly done scene. IIRC, she was a blue tint, meaning she hadn't been breathing. If that were the case in a real OD, she'd be dead.

Regarding the Doc, I have read that

Not really sure where they can go with Sara if Michael has broke out, unless he somehow finds out where she lives or something.

I, at least, hope the conspiracy is better this year. And again, no killing off of Abruzzi, and hopefully the sideplot with Fibonacci gets taken care of this year too.