A thread I read about what events people would like to see again inspired this idea so I wanted to post it just incase.
Aside from the Witches Festival for Halloween this year, could ZOS make 1 region at random, that doesn't require DLC to visit a PvP zone? The event could be called 'The Daggerfall Massacre' or something for example.
Instead of earning AP perhaps you could implement a ''Blood Tally'' system that allows us to use our kills to cash in on unique prizes from a special NPC in the main settlement in the area, it would also be good because then we'd know if we kill an enemy player (We should have some notification when we kill a player anyway). Prizes could include psychopath costumes or masks, a butchers knife novelty weapon, new ''Covered in Blood Splatters'' skin, new mementos, accessories etc, perhaps a new Halloween armour set that will help only during Halloween Massacres so that way people would keep hold of it for next year.
No siege weapons allowed. Perhaps allow some of the alliance war passives to work. Personally i'd say make it NON-CP but I wouldn't mind either way.
If there is anything else I could have added, please leave your ideas. Let's have a little discussion. Keep it friendly.