thanks for the heads up.That search is missing some though.
The rest of the Flux pro series, C8, P30.
Another difference I've just noticed is the Flux Pro doesn't have tray cutouts for reverse connector motherboards whereas the Flux and SE do.
I have the Flux and it's fantastic, such an easy case to build in.

The Flux Pro is fantastic. I can't fault it, very quiet case, great temps. Looks classic, with some subtle RGB through glass side panel. Great balance between black box and fish tank overkill.
Only thing could do is screwhole for the side panel, instead of push pins.
Steel/aluminium instead of glass
Larger fan hub