Yeah, it might seem weird but Lordareon is too small for a semi-decently sized NRP campaign. Forget WC3, you'd struggle to play WC2 style events on it. I can make an alternate suggestion, though. What if we expand the scope to the entirety of the Eastern Kingdoms and to make things interesting we take an alternate ending to WC2 where neither side won and the Orcs still hold Arathi and Stormwind? WC3 events still kick in with the Scourge's appearance but things would be more diverse and chaotic.