I mean a different housing system* would be nice. . . /shrug. I'd give Rahbuan's right arm for a better one.
Waaay easier said than done of course, cost of this system I'm sure is substantial and changing all the core code to fit a new system more so (which adds logic to way we've been stuck like this, but I'm not going to be happy about that lol). I've some finely aged amaurot oak cast salt for this system and hope to never see this exact system again in any mmo I play-- "but my neighborhood's" one might say but even instanced systems are capable of that. The only thing, in my eyes, this system achieves is locking down player and developer creativity while also being a logistical nightmare (even if they add more lots getting the lot of the size of the location theme you want is additional issue, and as they add more lots for players instead of FC guess what vibe gets worse and worse...

/saltbae.
*Improving systems can appear to the point of 'different'. Just to be clear, say for example they removed the weird limits on apartments in each ward, such that if you went to the building they were there and search able (no 500 in this ward and 500 in that, they are there and available, and 'it just works' lol). Then they made them upgrade-able to the point you could get large size house with a yard, like renting a cottage or something (outdoor space included). This would be 'like' a new system in my mind, but some might argue that's still apartments. Whatever floats the peoples boat but still turns into a solution.
Of course ultimately I still think SE should be dreaming much bigger than apartment upgrades, like creation magic madness (ala wildstar tier quality systems). Power and creativity for everyone.