As tendency goes, Xur has an inventory, that is spread out across all platforms. With new change to Xur that makes him upgrade our exotics, that made me thinking. Will Hawkmoon/Monte Carlo ever make it to his stocks of upgradables? Or these sought after guns will become obsolete until Fall 2015? I won't even start on progression reset, there are a lot of threads out there on this. Feel free to express your thoughts. Edit: Just watched Planet Destiny video on upgrading exotics, and let me say: it's not reassuring. It works like this: there are 6 armor pieces (2 for each class) and 6 weapons each week for upgrade. They don't depend on what is in your inventory, and they change from week to week, like Xurs normal stock.