I would not be surprised if RDM/SAM get ironworks weapons (120) and augemented ironworks weapons (130) added to their respective vendors, much like DRK, AST and MCH got. HW vendors will almost certainly have weapons added for RDM/SAM. In the same vein of the ironworks gear, I expect RDM/SAM to get Doman/Artifact/Eikon/Shire weapons added as well. I would also not be shocked if primal weapons were added in much the same way as DRK/AST/MCH, particularly since lvl 50 is when those primal weapons become available anyways.