I was trying to come up with some pros and cons zoned vs continuous. Continuous worlds are certainly possible but there will be tradeoffs. Just have to think about how such a world would actually be implimented. For example, as you move around, your comp will have to be continually loading new areas and unloading others. All the time. Likewise, since the "server" will still not be a single machine, some way of load balancing will be needed. In EQ1 that each zone would have it's own models (especially mob models). This allowed zones to have unique models. In a contnuous world you can't do that and you're limited by however many models the minimum client you're going to support can hold simultaneously. Asheron's Call (a continuous world the same vintage as EQ1) had an extremely limited number of mob models compared to EQ1, because they all had to be loaded globally. Presumably this isn't as much an issue nowadays but I suppose with models having ever higher resolution and multiple textures (color, bump, specular reflection etc.) and the push to make them as high resolution as possible there may still be issues there. I'm guessing EQN will be a continuous world anyway though.