Raptor has indicated that they will sell the mainboard only, just not quite yet: https://twitter.com/RaptorCompSys/status/997421199117430784?...
(Disclosure: IBMer, I don't speak for IBM or Raptor)
(Disclosure: IBMer, I don't speak for IBM or Raptor)
Many original complaints about the Talos system were its high price, it seems that Raptor really did listen as this new "Lite" offering is getting down into the "I could probably convince my manager to buy me one of these at work" kinds of pricing, assuming I had a genuine reason to be interested in it.