Guild Wars 2 Game Director Colin Johanson mentioned that while AreneNet is not planning to rework the current World vs World maps, that does not mean they are not working on new maps. Below is his full statement:

"It’s worth noting, while they said we’re not working on new versions of the home maps currently, they didn’t say anything about new maps in general….."

He goes on to say the developement team is work on "extremely large" new progression system as well. Click through to read the full post.