Head-Fi sure loves turning off my notifications from the Empire thread
Anyways, as far as suggestions are concerned, I'd recommend looking into open BA technology. Although it's now associated to 64Audio with their tia drivers, the tech has been long used by companies like UE and Soranik. I think it would be a great complement to the beautiful midrange of the Zeus and the awesome, visceral bass that the prototypes have displayed.
There's not much else I can suggest, you guys do most things pretty damn well
Maybe more options for exotic faceplates, but I have a pretty apparent obsession with faceplates, so take from that what you will