He did warg into Bloodfyre to check on Sansa and the wildling host to see how far they had marched. To his great surprise, he saw a few new faces around the camp, meaning that some Northern Houses were actually joining them. The host was still a month away from Winterfell. While a good horse could ride a hundred miles per day if pushed, an army on foot could only do around fifteen miles. Jon had plenty of time to make himself a full set of spellforged armour. After all, no matter how strong or fast he was, he still got hit from time to time, and at some point, he could get fatally wounded, if not outright killed by a single strike.