The happiest time in Jon’s life, aside from as a kid at Winterfell, was living among the Free Folk, hanging out with the lad Mance, shagging Ygritte, it’s obvious he’s going back there to do what he liked doing, and more power to him - he was miserable as Lord Commander, and even more miserable as King in the North.
I don’t really see why the Wildings would go back north of the wall, I assume it’s nicer on the south, they seem to have reached an accord with Winterfell in the wake of fighting the white walkers, couldn’t they settle the castles and lands that have been left empty? If they still refuse to acknowledge the authority of the crown they go north of the wall, but there’s a big hole in it, so it would just be a gentleman’s agreement for the North not to go after them like they have in the past.
