The Guild Adventurers are probable candidates for PoD though I think they would be post-Bestiary manuscript completion and TGA#4 update completion.
Archendurn, Dun Cru, Toyman are possibles, though that would be pending stat updates for HARP and RMU.
Castles & Ruins, Essence Companion and Rolemaster Companion I were various levels of nightmare to remaster and would involve new nightmares to get to PoD. I am not expecting them to go to PoD.
Best wishes,
Nicholas