As many others, if I join the GB, it will be for the alt basekit. It's quite original and nice looking and, although I get the concept and why the base kit is like that, black on black keys are hard to read and don't have the magic of the alt kit. Maybe the alt kit should be the base kit, and just create an extra kit for the black keys? (I don't know how the MOQs would work for that with GMK).
Of course, having the base kit with transparent labels (so that the RGB from the keyboard shines through when turned on) would also fit the theme (dark with no light on, colourful when the lights are on) and be amazing, but I don't know the feasibility of such a thing in a GMK keyset.
Also, seeing the interest that this thread is gathering, it seems that this kit is going to be quite popular. Maybe it would be worth to consider an international kit with no tertiaries (such as the one in
PBT Cherry Milkshake, that includes Nordeuk+es/pt/fr support), or a Nordeuk + LA/ES?
Anyway, whatever you decide to do, really amazing IC!! (Specially for a GMK keyset, which tend to be on the boring side).