The wolf scene is used to show that nymeria is still alive. I think in the books we hear about a pack of wolves lead by a direwolf but I don't think they had shown that in the show yet.
Yeah, but really we didn't need to know about nymeria since as you said, she hasn't been spotted since season 1. I get that it was thrown in for the book fans, but there are so many little stories not covered in the show that we needn't really waste time on at this point, since there are so few episodes left. Don't get me wrong, the ed sheeran and nymeria scenes weren't bad or anything, just felt like an unnecessary waste now that it's supposedly crunch time with the show wrapping up so soon. I'd much rather learn if gendry is still rowing the same little boat since season 3 than learn that nymeria is running around with a wolf pack.
One thing I didn't get - is Sam going to just simply cut off all the "stonescale" pieces off Jorah's body? Is that the secret healing process?
It just seems like an overly painful and not effective way to heal.
Seems like it. He mentioned cutting it off them applying some herbal paste afterwards. Definitely kind of a lame way to cure such a mythical disease.
Not to mention Jorah is gonna be beyond ruined after it all gets removed... the infection clearly spread not only all over his torso, but below the belt as well. Soon enough he'll fit right in with the unsullied at least.
-stuff about sansa and jon-
If sansa can actually rule successfully while jon is away (and starts out by getting rid of littlefinger) then she'll finally have graduated to an uninteresting/predictable character to someone that is either neutral/potentially has room to (finally) be interesting. But the way things are going it seems like she's going to predictably play right into littlefinger's hands and undermine jon's efforts, knowingly or not.