Maybe some of book readers can help me.....Tormund and the few remaining Wildings are headed back to the "true" North of the Wall. Since the Whites/zombies came from the far North, weren't the Whites we saw lined up at the Wall before the dragon blew it apart, mostly Wilding corpses? Are Tormund and the others expecting living Wildings North of the Wall to be there, waiting for their return?
Maybe Tormund and others will be grabbing Stark subjects/women to repopulate the far North? There should be many Widows after the Battle of Winterfell....