Maybe there's some fancy idea behind making the cities larger, but I only find
it annoying. Lots of empty space, deserted streets and doors that won't open
only remind me of some 3D fantasy games of the past where a city that was
supposed to be a busy metropolis looked like a ghost town. The Old BatCity was
just fine in its size, it's kinda ironic that while the player base seems to
diminish the world is only getting bigger.
I don't know if there are plans to convert other cities (Shadowkeep and
Lorenchia could use a new, improved map) but if there are, hopefully those are
done in the style of Calythien or old BC.