[@Product]On the second thought if you allow custom factions you can fix almost every problem you have with Warcraft. In lore let's just say national borders are insane as you can have dozens of troll tribes roaming free within human kingdoms without the two ever properly interacting. Or how typical NRP activity can be done for factions that technically have no territory. If you make this into a heavy alternate universe version of Warcraft then all these issues could be reliably solved. Amani and Gurubashi have their own proper nations. Dwarfven realms that can exist without strong dependence on Ironforge. Gnoll/Murlock nations. Corrupted lands already in control of the Scourge. Etcetera, etcetera...

If we dramatically alter the plot of Warcraft and only use the lore at its core I can see this working out. And yes, Lordaeron is big enough already to host a great variety of nations.