I'm just going to bump this thread now that the 8.0 pre-patch is here. A few minor changes, including:

Code:
graphicsParticleDensity now goes up to a setting of 5 (Ultra) — was 4 prior to BfA.
graphicsSSAO now offers a "Good" option at level 3, pushing High and Ultra to values 4 and 5, respectively.
So, if necessary, update your slot-swap macros!