They really need to merge Dynamis worlds into Aether, Primal and Crystal

[Menriq]

Merging comes with a lot of issues that I don't see them wanting to bother with
- People losing houses
- Two or characters having the same names, so someone has to change (Retainers too, for that matter as when I moved from Brynhildr to Malboro I had to rename my retainer)

just two I could think of off the top of my head
with housing, they could create new wards to compensate but I doubt SE would be wanting to do that or how easy of a process that is, all things considered

I think you might be misunderstanding. The two points you made are not impacted by merging, because the server just becomes a part of the DC. For example, Maduin and Seraph might go to Aether, Hali and Cuch go to Crystal, etc.