>1. Only Arya was trained in blindfighting? For some reason I
>figured the Waif would be trained in that as well.

Waif may have been trained but did not reach the skill level of Arya.


>2. What happens to Tully's men after surrendering? How could
>they fall for the exact same thing that the Boltons pulled and
>flayed all the surrenderers? How could what the Boltons did
>not come up at all?

Had no choice, they are too loyal.Think of it like the current armed forces fighting for Trump.

>3. How much trouble is Tyrion going to be in for all the deals
>he cut while Dany was away?

>4. Where was Vary's going?
>
>

These two questions can not be answered this early.