Cantha would be a great opportunity to explore something different. Something that wouldn't have to deal with tracking down and slaying Elder Dragons or some powerful being who aims to use the Elder Dragons as a weapon to further their own gains. There's so much lore there, familiar lands for us Guild Wars 1 players changed by the political upheaval from centuries of new policies and a rise of a xenophobic regime. Ideally, they could come up with finally a new race - that being the Tengu. Whose entire personal story could revolve around going back to Cantha and their starter city would be the Dominion of The Winds. Maybe the creator features a choice of the Shing Jae islands being the ancestoral homeland of your personal character. But the personal story would not be the main story of Cantha. We could stage an uprising. Arrive to Cantha only to be imprisoned due to being outsiders. Escape and find remnants of the once and powerful Luxon and Kurzicks now banding together as a rebel state looking to one day achieve their freedoms and re-establish their sovereignty. The story could be more focused as your run of the mill war between the people and the Empire, throw in some nuisances of the Envoys and scourge of the once and powerful Shiro. Have it's own entity, the Leviathin, somewhere in the now thawed Jade Sea. There's plenty of opportunities Arenanet could go with. Unfortunately what we come up with may all be well beyond what we end up with haha.