Well the fact AMD announced mobile Vega,hints a new 24 CU part is being released.
RX Vega M GH is a 24 CU / 1536 Shader part, but for some reason still has 64 ROPs.
http://www.eurogamer.net/articles/digitalfoundry-2018-core-i7-g-with-radeon-rx-vega-spec-analysis


Was on phone I have no idea what happened. I was generally being serious I though Nvidia Green talk was in AMD CES thread. Silly me!"