Guardians can find Xur on the home turf this week with some rather interesting Exotics that should come in handy regardless of whether you're a PvP or PvE player.
Destiny 2 players can find Xur in the Tower this week. To get to his location, spawn in The Courtyard, open the map, find Amanda Holliday there and set a waypoint on her. Follow it until you reach the NPC, turn left and keep going straight for the landing pad. Xur will be on the catwalk to your left, shown on the picture below.
He is carrying Hard Light, which is highly useful Auto Rifle in both PvE and PvP. In the first case, you can use it to switch between elements to match the enemy shields and with the recent change to its animation, the weapon should perform this role rather well - particularly useful when Match Game modifier is up. As for PvP, you can see its projectiles and Hard Light has Ricochet Rounds which will let you practice bouncing bullets of the walls to hit enemies behind cover. Besides that, it's a 600 RPM Auto RIfle which is still a good archetype in PvP and has lower damage dropoff than any other weapon in the category.
Hunters are getting Young Ahamkara's Spine, once again an item useful in both PvP and PvE. It causes Tripmine explosions to cover a wider area, do 160 damage instead of 140 and charges it up partially when you damage enemies with other abiltiies. When fighting other Guardians, try running top Solar tree since getting damage with the explosive knife is rather easy, which should charge up the Tripmines quickly. In PvE, it's great with Way of a Thousand Cuts since you can spam the knife throw and Tripmines for both great damage and easy Melee + Grenade bounty cleanup.
Titans are getting Dunemarchers that increase your sprint speed, provide better sliding and deal damage on hitting enemies with melee. This makes them fantastic in PvP and even PvE since you will be able to clear large mobs of minor enemies with ease. Usually goes well with Shoulder Charge abilities but be careful in PvP since you will often be on the wrong end of a shotgun barrel.
Warlocks probably drew the shortest straw this week as they are getting Felwinter's Helm. While useful for clearing groups of enemies in PvE, it struggles to be anything other than a waste of an Exotic spot in PvP.