The two factions merge into one. I can already see the endless complaining.
Also, an event similar to the Wrath pre-event with the ghouls happens, and it lasts 3 months and there's always ghoul-like creatures that can transform you into one in all major cities and sometimes the auctioneers and bankers transform into ghouls when you go to them and they're like raid trash hard.
Maybe not ghouls, they transform into... naga slaves... with those octopuses on their heads.
Oh, and if you sit too much in a capital city or in the zones next to it without doing quests, npcs come and assassinate you. This should solve the Org and SW people sitting there for no reason but to show off their mounts and whatnot and goldsellers and gold beggars.
Also this: