When Shirogane released, it was just one housing district of 12 wards. You will have the advantages of Spriggan and Twintania opening housing for 4 separate housing districts with 18 wards each. On Cactuar, when Wards 13~18 were added, I remember the Lavender Beds being completely free for the picking when it came to housing that morning (even after I was in a queue of ~300 because I was spamming the launcher)—which was how my FC managed to get a house, and I managed to relocate my personal small into probably one of the best medium plots in the game.

That said, I don’t disagree with giving FCs priority the first two weeks, but, if they do that, I don’t think that they can also include “prior homeowners from other servers” priority as well. When personal housing opened after Wards 13~18 released, the plots on my server weren’t all full within 30 minutes (it actually took a few days for the Goblet to even sell out), so I think people who want a personal plot will still be able to get one on these servers without too many issues. Even if it’s not their number one dream plot, it will still be better than nothing.