This week you will find Xur on Titan located on the RIG section of the main platform.
Xur is selling a few unique items this week and one classic export for Destiny vanilla.
What is XUR selling:
Exotic Warlock Gauntlets
ACD/0 Feedback Fence
Exotic Titan Gauntlets
Exotic Hunter Helmet
The Wardcliff Coil
Exotic Rocket Launcher / Power Weapon