Summer Update Plan

I think it's pretty cool. It'll be relevant for about a month or so.

How they'll implement this without ridiculous amounts of lag.... good luck nexon
I guess it'll all be dependent on the users computer. My guess is that this is just be a huge update to the map.wz file.

There would have to be an update to the rendering code (in the .exe), so it would know what to do with the new map.wz data.
Obviously it's a matter of the user's computer, since it's all client-sided.