All of that is too big for a single expansion. It's as if you painted over Eriador and said, "hey, expansion this fall." Umbar and surrounding landmass alone could be an expansion. If they want to be throughout, then I have doubts whether Nurn could be just one expansion (...looking at Gorgoroth's size vs Nurn) but a large portion of it would be the waters (and not very friendly ones, probably poisoned/evil somehow), so probably they can manage with this one. But really, Nurn makes the biggest sense narratively, considering the loose ends, plus like someone suggested earlier - freed Nurn could make for a good base/main hub East, before venturing into these vast alien territories and kingdoms both long under the dominion of Sauron and locked in military conflict with the West out of their own imperialistic volition. After all, it wasn't always Sauron who started every single East-West war in existence and Variags themselves are willing war-like mercenaries who act quite independently of Sauron as such
Last edited by TesalionLortus; Jan 05 2023 at 12:36 PM.