Originally Posted by
Zantetsuken
One of the main reasons that Ul'dah became immediately popular is due the proximity of the Market wards to the Aetheryte.
In 2.0, each city-state ought to have the Aetheryte as central as possible to the Guild Hall, GC Hall, Market Wards, Housing, and Exit gate -- along with some spare buildings for future expansion. They don't have to be as close as the current Ul'dah MW-Aetheryte is, but there should not be a noticable difference between the cities in regards to convenience.
Everything else can be scattered throughout the cities, but the critical stuff should be convenient.