Quantum is about new architectural advances within Gecko. These advances can be achieved by taking code from Servo (Quantum Style), ideas from Servo (Quantum DO

Quantum is about new architectural advances within Gecko. These advances can be achieved by taking code from Servo (Quantum Style), ideas from Servo (Quantum DOM), or in general new ideas (not sure if any of the quantum projects are of this form). Servo is still its own thing. The timelines are radically different, Quantum is something you should be able to directly benefit from a year from now; Servo is something you should be able to directly benefit (as a product) from in the far future. You of course may indirectly benefit from Servo when its advances are applied to other browser engines (which is what quantum is).