Mod authors have already stated they will not be bringing Median to D2R because D2R will not be supporting TCP/IP meaning they would never be able to make their own servers or Launcher like we have in current Median. It will always have to be played through Blizzards Launcher and on their servers so that's why the team have already announced they will not be putting any development time into trying to Mod D2R since it would only ever be able to support Single Player Modding.