Xur is back to the Guardians' home turf and is bringing some interesting and in some cases useful Exotics, except for Warlocks. Destiny 2 cheated them out in this round.
Xur is located in the Tower Hangar this week. In order to get to him, spawn in the Courtyard, open the map, place a marker on Amanda Holliday and follow the waypoints until you reach her. Then turn left and go toward the landing pad and you will spot Xur on a catwalk next to the wall to the left. Check out the picture below for the exact location.
He is carrying Arbalest this week, which is a rather fun weapon in PvP but might draw some ire from your peers. It's a Linear Fusion rifle that goes into the Kinetic slot, and as such, requires Special ammo instead of Heavy. You will be able to easily one-shot people at mid-range thanks to the high aim assistance as well as the short charge time which is just over half a second.
Titans are getting ACD/0 Feedback Fence, an Exotic that can be fun in both PvE and PvP. While they may not be the most effective pick in either, these gauntlets will provide some unique openings since they will reduce incoming melee damage and release explosions when you are hit by a melee attack. This translates to easy mob cleanup in PvE and winning just about every melee duel in PvP.
Hunters are getting Oathkeeper which lets them hold a bow drawn indefinitely. This perk is useful with the likes of Wish Ender or Leviathan's Breath. In the case of Wish Ender, you will have wallhack for as long as you hold the bow drawn while Leviathan has a really slow draw time, so keeping it drawn could be extremely beneficial.
Warlocks are getting The Stag which gives you Rift Energy when critically wounded and spawns a healing rift when you die. This is easily one of the worst Exotics to carry around since the risk required completely outweighs the reward so you will be better off running some of the pretty amazing Exotics that Warlocks have in their arsenal.