I am not allowed to say much, but some things do seem to be being tested at the moment.(as of 1.0.3.20)
I do not think we are close to being completion(then again, most of the expansion is not accessible), but I do see signs of progression.
Take that with loads of salt.
On the side note, I command load of work done on the existing game. Current patch have added, replaced or buffed dialogues.
P.S: while we are talking about new content, may I ask why core city does not have its own internal map?
Equal sized city like foundry have its own map.