Below are some suggestions I have been thinking about and feel would be fair across the board. These are some things I would consider if I owned FFXIV.
1. Allow a rotation of sunrise and sunset in both divisions. Every other cycle of day and night change it from sunrise to sunset. Then when we have other events still add in those fireworks. Mix it up a bit maybe during each season (spring, summer, fall, winter) we get different elements like northern lights during the winter or rainbows during the summer for example. Keep adding snow for just the month of December or some leaves falling for Fall. Just some ideas to keep the environment you’re in interesting regardless which housing district you reside in. You could choose to theme out the elements for each housing district like fireflies flying around in lavender. You can make lavender similar to the movie Avatar with the tree of life and other elements however I’d keep the sunrise and sunset and fireworks the same throughout all housing districts.
2. Regular division would be FC only for all wards and Subdivision would be Private houses in all wards (vice versa). This would keep a fair amount available for each FC and private house players. It wouldn’t matter which division you get because you’d still be able to enjoy the same cycle and element changes. This would eliminate people craving for a Lavender 41 or a Shirogane 60 because you can get the same experience with a Lavender 11 or Shirogane 30.
OR to sweeten the pot, just combine the FC and private houses into one. Make all houses private but can be later upgraded into an FC but make the requirements the same for owning a private house. So, at any time you can upgrade from a “Private” to a “Free Company”. If you want to upgrade to an FC, then you can include those requirements to own an FC. You wouldn’t need to worry so much about how many people put in for a plot if you remove the lottery system and implement instance housing.
3. Allow the houses to become instance housing like Elder Scrolls Online. If you currently own a house, then yours gets turned into instance housing. Everyone can own 8 FCs and 8 Private houses per world since you are limited to 8 characters OR just 8 houses in general that you choose which of the 8 get upgraded from a private house to an FC. Ward owners would go away since all houses will be instance. When people are online the wards will be dynamic - always changing who your neighbor will be based on who is logged in and locked into that plot slot for the time being. I would still allow grandfathered accounts to avoid upsetting those players or penalizing them for being able to own that many during those current times in the past. This is more so for new players moving forward.