Personally, I think this would "renew" the interest in exploring/re-exploring ascalon/tyria if there was more geographic and event changes.
One big one I think may work is "Rebuilding Ascalon" I'm sure one could make a few more zones, and if not that, a few "elite areas/missions/battles" similar to Amatz Basin (protect people while gathering material, engineers, builders) Make it similar to a "weeklong" kind of event... or a month. That way those of us "veterans" could share stories of how we grew up in an Ascalon that was wartorn and destroyed... give it some actual "past".
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