Just some random ideas, thoughts, and speculations. Not really spoilers as the books are not done and the shows are not done but speculations.
Although there are many speculations and rumors of who is going to be who and who will rule and all of that. One thing we can pretty much agree on (or we should) is that there will be a battle of good vs Evil.
Man vs White Walkers and their wright minions. (Man can be evil and we have seen that on this show but for arguments sake Men are the good in this battle).
Now if the battle happens and Man (man includes any humans and in the case of this book, dragons) win out they will pretty much have to kill the White Walkers and their minions or come to an agreement that they will go away forever.
Point being when the battle is over and Man wins (do we really think they will lose). Pretty good chance there will no longer be a need for the Wall or at least the Nights Watch. Which could be "one" way for Jon Snow to leave the nights watch without renouncing his oath to persue other "jobs or titles".
We also have the wildings being able to farm the lands south of the wall...
EXCEPT the Thenns. This is speculation again. The wildings pretty much don't like the Thenns...We had Jon's woman say she hated them, we had the female clan member in the last episode say she don't like Thenns and I think we had Tormund say the same thing at one time or another.
The Thenns prefer Human meat for their dinner. I am sure other humans would not be too keen on that. The wildings can let it slide when they are fighting because it would just be the enemies...the Thenns can not eat the White Walkers or Wrights and that is the only enemy other than the crows and southern people. So if they move south of the wall who will they kill and eat? Don't seem like the type to compromise and only eat deer or other game. So...My thought is all the wildings will move south of the wall except the Thenns who will be killed out or something else happens to them.
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Jon has Valeryian steel he got from Lord Mormont.
Jon's father, Lord Stark had Valeryian Steel (probably not a coincidence it was named ICE).
That Sword, Ice, was later used to cut off Ned's head and they melted it down to make two Swords.
Geoffery had one (widows wail) who should be passed on to Tommen.
The king slayer received one but he gave it to Brienne who named it Oathkeeper.
You have the dagger that was going to be used to kill Brandon.
Samwell Tarly's (sp?) Father also has one but I don't recall if they named the sword.
Look for Sam's father to be part of the cast and story next year. Stannis made mention that he was the only man to
best Robert in battle and word is that there is a casting call for two major characters for next season one seems to be Euron Greyjoy the other Tarly.
Tyrion at one time or another, or maybe it was Sam, has said there are more Valeryian steel swords out there but they are somewhat rare.
So we know that Valeryian steel can kill the white walkers and Obsidian and Dragon glass.
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As in the books, at this point, and as in the show series....It seems that Rickon Stark, Osha (the wilding woman) and ShaggyDog seem to have pretty much vanished like Richie Cunningham's Brother who was on happy days the first season, went to his room and was never seen again.
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Something else to wonder about. Sansa's Direwolf is dead. Rob's Direwolf is dead, Jon's Direwolf is at the wall, Rickons Direwolf is with him and Osha, Brandon's dire wolf is with him at the tree....Where is Arya's direwolf? Remember she told it to get away from here because she thought Geoffery would want it killed. In the books it at times writes about a large wolf running with a pack but nothing in the show about it. I wonder if we ever see Nymeria (arya's direwolf) again.
Just some rambling thoughts.
