I've been following Crowfall for a while and always been intrigued with EKs. While I understand we're still in Alpha, there's some designs choices that could be applied to EKs that would improve immersion when you're running around and using them.
First of all lobbies and listings of EKs should be used when you're searching for a specific one. When we have possibly 1000s of EKs its going to be bland going through a list to pick the one someone named best.
If you want to explore public EKs, you should be able to run to them. My conception of this is when an EK is set to public it is plopped down in an EK neighborhood. There are half parcel roads that run between the EKs that you can literally run up to your neighbor or the next one, or the next. I'm picturing them organized like a torus (donut) where if you run east or west you may pass 7 EKs before circling back home, and if you run north or south you could pass countless. It gives the choice of how far you'd like to explore that day. Perhaps separate pvp and non pvp along the spine of the torus, with big skull and cross bone signs as warnings. Roads would be non pvp as EKs should be optional pvp.
Now you may be thinking, but how will they get to my EK from the road if its floating in nothingness in the middle of my allotted space? I feel as though the empty void and rough edges of the parcels break immersion as well. Perhaps they're already planning to smooth out the edges in later iterations, but I offer an alternative.
Barren parcels. Basically when you start a new EK it has a temple surrounded by completely barren parcels that are useless. You can't build on them, no mobs, no resources, nothing. Perhaps include void parcels where its like Swiss cheese opening into the void instead of lakes, but its at least semi cross-able. When you craft or buy a new parcel it is your godly power reshaping the EK as you desire to benefit you. These will fill the void between improved parcels and the roadways and allow you to place parcels none contiguously allowing more versatility and use of the half parcel spacing on the map. For server load, there should be decreased visibility from the road, maybe only can see half a parcel onto each EK until you enter. (Edit: Barren parcels could be used to smooth out the campaign edges also.)
Now thinking about the neighbors, what if you have a real jerk next door that just annoys you to no end?
Neighbors are randomly shuffled maybe weekly. This will make the neighborhood fresh and new and encourage meeting new people. If you happen to like the neighbor, you both can build an obelisk that is magnetic, drawing you together in the reshuffles. They may not be on the same side every week, but next door or at least near by.
The obelisk could be used in private EKs as well to string multiple together creating your own private world (reshuffle optional). I'd have an access list for this private EK world to allow guild members or specific individuals. Are we able to set allies as Guild blues? Yay literal Blue Donuts! (Eve reference)
I hope you like the ideas I've presented here. I feel they would give a more organic feel to the community of the Eternal Kingdoms.