I think the betrayal questline that was introduced as an april 1st joke should be real.
With the addition that it's not a one-way change and that you can change back after 3 months (quest is available once every 3 months). And your own race NPCs are Unfriendly. They won't attack you, but will when you attack them or their faction attacks you. When you reach Honored at a new factions capital city or subfaction then your own race NPCs Unfriendly state will change into Hostile.