They don't need a ward reset.

What they need is to completely kill off the idea of housing retainers in a physical location (at least in a capital city). Trying to cram an entire server population's retainers into a few areas results in nothing but issues for both the servers and the players.

I propose retainers to not be actually physically housed when you place them in a capital city (and put in place a means to directly purchase an item from the item search list), and also allow for a non-absurd amount of retainers to be placed at aetheryte camps for a set amount of time (limited to one retainer per account at a given camp).