First I must say Arenanet did a great job in creating this event! I noticed some blocked roads which probably will be accessable in the real game
And that takes me to some points of confusion: I can't figure out how the real game will be just by playing this event. There is a really big difference between the Luxon maps playabillity and the Kurzick maps: The Luxon maps remind me of the happy uncomplicated adventuring in Pre-searing

. Lots of space and many ways to avoid unessecary encounters. The Kurzick maps however... Crowded with so many creatures its agro, agro, agro and once more agro... I hope they will change this.
As some other stated, for owners of the original game its no more than an expansion, and I really wonder why they can't dl a special 'add to the original game only version' for a lower price...