An idea popped up in my head just now about the current state of the market ward system.
It is widely known that there is a glaring issue with how almost everyone seems to use only the Ul'dah wards. This causes problems for people who wish to place their retainers in the Ul'dah wards but there is no space left (I realise they are increasing capacity soon, but won't the same thing happen again when the wards get full under the new capacity?) and causes the other two cities to be almost dead in terms of economy, which leads to a lower population.
My idea to fix this problem would be to include an option, when a player hits the item search option at the wards entrance, which would allow the player to view the wards of the other two cities.
With this feature in place, people would not have to worry about lost sales and slow earnings if they placed their retainers in the other cities, because a player would easily be able to view the results of retainers in other cities. All that would leave to the player looking to buy the item they found in the other city is to teleport there and purchase it from the respective ward.
Here is a scenario of how this would work out:
Player A cannot place their retainer(s) in the Ul'dah market ward and has no choice but to place them in one of the other cities. Therefore, he teleports to Gridania and places their retainer(s) in the market ward there.
Player B is looking to buy Green Glass Lens from the Ul'dah market wards because their alchemy rank isn't high enough to make them and would rather make his Silver Magnifiers (Green) now instead of having to rank up alchemy. Unfortunately, he cannot find the lens he's looking for anywhere in Ul'dah.
As a result, Player B goes to the "Other cities" option after selecting the item search option from the main wards menu and views Gridania's market ward. He spots that Player A has a Green Glass Lens for sale on their retainer in Gridania, teleports there and makes the purchase.
I believe this feature will encourage many more people to use the other cities' wards and potentially increase the population of that city because they will know that their retainer will be seen and not ignored just because they're in a different city.
There is also the idea of merging every city's market wards in to one huge one, but with the current issues with have with the servers I'm not sure whether this is a feasible option or not.
The other alternative is to implement the Auction House system which is currently in place for FFXI, which links all the AHs from every city to Jeuno's but if SE is serious about keeping the market wards as a priority for player transactions, they'll need to improve the market wards in a way so that people won't feel their retainers are being ignored due to Ul'dah.
Thanks for taking the time to read this idea of mine.