They seemed a bit derisive about only pre-set options being changed like before, making it seem like they could do far more here, and mentioned that they wanted to be able to update campaign/world changes post launch because they had only been able to update pvp in previous titles. Why would they mention being able to update pve as much as pvp if you think they will only update pve in sequels? From what I hear the game tags are hugely different and aren't configured into pre set 'maps' per say, so it stands to reason they could heavily modify events and even how the game is structured without needing dlc or a huge update of any kind.