Every time I enter WvW on my Engineer, I have permanent Quickness for the first 20-30 minutes of play. It persists through death, waypoints, and moving from one map to another, then goes away eventually.
There is no boon for this quickness, but it is incredibly obvious when it is active.
Traits: 30 Firearms, 10 Alchemy, 30 Tools
Firearms – Infused Precision, Rifled Barrles, Rifle Mod
Alchemy – Invigorating Speed
Tools – Static Discharge, Speedy Gadgets, Adrenal Implant
This started after the September 14th build and has happened to me a total of 3 times now. I thought it was a fluke at first, but it seems to be repeatable and unavoidable every time I enter WvW.