Guild Wars 2

Instances of the past

Make it as a instance of the past (kind of black and white memories or sepia event, this could be applied to mad king and other future one time events)

- A special NPC will bring back to the past of your choice
- Collect a team of “x” players and start the instance
- Other players can add for a max “x” players (if the first instance is full, create a new one and collect new players, rinse and repeat…)

- Loot from thrash, vet and champ like the past real events (in this case I guess no loot)
- Final big chest gives the rewards only one time with the same chance as the real event

You can repeat as much as you want, it will contribute as exp only, after the first time you successfully collected your items from the ancient chest.

So basically you give enough time to everyone get their rewards at their own pace, and discourage to repeat again if you have done it, so others can do that without overhead.