I appreciate your bringing that up, I watched the scene but didn't understand its relevance.
The other noteworthy tidbit in the finale was the white raven arriving at Winterfell signaling that Winter is here.
As for next season the only predictions I'll make is that the dragons will make short work of the zombies from beyond the wall.
Also, could it be that Jon Snow is the Prince That Was Promised , and that is why the Red Witch was able to bring him back from death?
http://www.vox.com/2016/6/26/12029644/winds-of-winter-recap-jon-snow-parents
Jon came back from his own “magic or destiny.” The witch was as surprised as everyone else that Jon came back to life. There is something about Ned’s bro being alive to save Bran from white walkers and Jon.