Raiding And Other Quandaries
Having it only doable every 12-24 hours would surely lock out a large segment of the playerbase from being able to experience this event on each server.
I have done raiding elsewhere and do sort of miss it, but even so you generally only have to be there for one boss to get a chance at the rewards from that boss. The loot rules of your raid force may change that, but the games rules generally do not.
I’m not opposed to zones like you describe that can be beaten back by players, I just don’t see a reason to close it, or a reason to insist on being there from the very beginning to get the full reward for beating the end boss.
You pretty much described Orr temples, which exist.
Anet also announced that the new Karka Queen World Boss that will be available starting on the 4th is pretty much this.
- Added new island-wide meta-event where players defend and liberate the new settlements across Southsun Cove. If players hold all four settlements, merchants will become available with unique items, and there is a chance that an Enraged Karka Queen boss will spawn.
- The Enraged Karka Queen boss event rewards large boss chests like other world bosses and gives two guaranteed rare or better items once per day.
Source: Update notes
The good news is that this boss will stay after the end of the Southsun living story!
Anet already mentionned they were looking into revamping the World Bosses – it would be nice if they would organise those events and the pre-events leading to them more like open world “Raids”.
I wish the world bosses were more interactive with the world. I think it would be much more effective to have the bosses appear at a random place on the map (obviously somewhere geographically feasible). How cool would it be to just be questing or gathering with some friends when Jormag is like BAM, I’m here, rather than a bunch of people waiting around for him.
You pretty much described Orr temples, which exist.
Orr temples would be like itsy bitsy little events by comparison.