What's exactly the difference between rev 2 and rev 3 then?... I have an Gigabyte 2080 Windforce III as well, albeit I'm staying away from Gigabyte due to their notoriously bad warranty support.
Oh forgot to answer this: the difference is that rev.2 has a singhle 8 pin, while rev.3 needs two 8pin pcie connectors (so more cables) but it als ohas an additional heatpipe, so probably somewhat better cooling. But both are dual slot unlike rev.1.
As for the redesign of the A4, the frontal jack is welcome but it should stick with 2.25 gpu thickness - maybe 2.5 at maximum. 3 slot cards don't run comfortable in such small cases, it's best to just stick with what's supposed to be used within this size and also forget aio's. This is the A4 case. The H2O is 11L, there's no point in
making the same case just for -2L. Also there's the FormD T1, Iqunix ZX-1, Ghost S1, Evolve Shift XT, Lian Li Q58... While there's only one 7L case that has case fans as well.
I know where the 3 slot comes from, since you plan 120mm fans on top due to the aio idea, that makes the case wide enough to have 3 slot cards.
But how about actually keeping the original width, but reducing the cooler headroom to 38mm? There's really no performance difference of 37 or 47mm coolers when they both reach the side panels, might as well do that. Could run on an X36 or L9a - perfect for 65-80w cpu's. Then that extra 10mm would contribute to extra 10mm over the gpu side. With two STRICTLY 92mm slim fans on top for a little airflow and that's it.
EDIT: I realized this probably won't work as the SFX psu thickness grants the 48mm... Still, no need for AIO's, only just slim case fans is enough and the case can be 8L-ish.
AIO cases are way too many already, while this one would be without equal and actually what most people want yet don't have ANY options (only with dual slot). You could reap everybody with a Velka 5-7 and Dan A4-SFX. Gaming cpu's are best at 65w and the A4 was always a gaming case that understood that. Quality psu, gaming cpu and an actual regular-sized gpu. That's what it was all about. Now 8 years later when 65w cpu's are more efficient but 2.25-2.5 slots are a thing, it adapted to new conditions with better space optimization regarding headroom for components.
