Count me in the group that thinks Sansa was happy about Jon, and then worried about what LF might do. Regarding the LF vs Varys line of thinking, perhaps once Jon/Sansa learn about Dany and her dragons they will try to ally with her. Especially if by some miracle Bran makes it back south and to Winterfell to be like "Jon, my cuz, you's a damn Targaryen royal boy!"
The only thing that I didn't predict this episode was Arya. Frey pie was pretty awesome, but not as much old Walder getting his throat slit. So, when she was eyeing Jaime, she was probably thinking about killing him, too, eh?
I still think Jaime is going to kill Cersei.
I also wonder how it's going to go down in the books, with Loras actually holding Dragonstone, even though he's apparently badly injured.