I think it would have been interesting if there were two types of visually distinct Borg:
We know from "Q Who?" that the Borg were meant to be a species that willingly chose to become a cybernertic hivemind and that they weren't all assimilated people.
I think they should have kept some Borg that we saw as the way they were in Q Who? and BOBW, just white skin. These would be the "pure" Borg who were always Borg from birth.
The others that look like zombies from "First Contact" onwards would represent the ones who were forcefully assimilated.
So we'd have scenes were the less gross looking Borg would be standing side by side with the mutilated zombie ones.
How about non humanoid borg as well? Not that we saw many aliens who weren't human shape. Bt if they had assimilated species 8472 or assimilated the Tholians what would that look like?