We already have one serial signalling method being "pan-standard." It's single mode optics transmission. Optic transmitters already don't care what data exactl

We already have one serial signalling method being "pan-standard." It's single mode optics transmission. Optic transmitters already don't care what data exactly, and how is sent through them. The electrical interface in between them, and the main chip is a dumb SERDES, and it does exactly nothing except sending the data as-is. Once on chip, the signal is free to be routed without any special electrical modulation as one wants. Plain SFP+ transmitted are used from Ethernet, to FibreChannel, to Infiniband, to SONET, to 4G CPRI, to HDBaseT. Both fibre, and optics actually got really, really cheap.