Throwing out an idea in there air.
What if we designed & made a PLASTIC keyboard chassis that was BIG to match the plasticness of shiny SA & DSA keys.
In the Style of the lower symbolics keyboard.
It would go against the grain of aluminum TKL's.
I personally would love something that massive to put Round 5 keys on or even a replica of this. (I may be alone here haha)
And ask SP to mold it.