The Tower of Nightmares is now accessible, an entirely new area to explore as you work your way up the tower’s inner structure. Along the way, Nightmare Chambers provide little instanced story missions that bring back some familiar faces, some you might not want to see. The Tower interior is a dangerous place, three floors of tough enemies, dangerous events and occasional boss fights.
New features/content includes new respawn options for Custom Arena, and the Player vs Player map will now display enemy markers for enemies in combat and in line of sight of your team. Server-side improvements have reduced skill lag during heavy combat scenarios, and all permanent gathering tools will now be account bound. If you’ve already bought a soulbound gathering tool, you can go to the Black Lion Weapons Specialist and have them upgraded to account bound for free.
You can read the full release notes here.