Servo is getting us 80% there, the remaining 20% of quirks, non-standardized behavior and web sites coded with only Chrome/Fx/IE in mind are going to be increasingly difficult to cover.
On the other hand some pieces of servo are close to have "full" compatibility. That means that we can put them in Firefox already.
The result is that web coverage alignment between Servo and Firefox increases which is great for Servo, and the performance and safety between them improves as well which will benefit Firefox.
But even the latter may need a name if they will involve months of time and a large enough group of people that all need to be able to refer to them. Blog posts are more debatable, of course.
[1] https://hacks.mozilla.org/2016/07/shipping-rust-in-firefox/