It's not gonna be empty but plots will be available to those who will achieve it.

The rich is rich for a reason, they worked for it. It's not like you need gil to have gil in this game. You can make gil in game if you truly grind for it.

You're not locked out of content, you just have to work for it. It's like saying you're locked out of content because you're not a triple legend, but you don't put any work to prog the raid. Like I said, let it become an endgame, long-term, optional content. That is, if they cannot make more wards, just make it a lot harder to acquire to make more sense of the scarcity.