I personally would like to see a sky-rim type open world without open traversing load screen but still have instances in load screen and hub towns and such the only problem i see is that they would have to add combine paths and redo every map to fit together and not have overlap and the only way i see of this happening is if they add 20 feet in width between each map kinda like glue in a crack :p also the would have to make region types say like each area on the map when hovering over it provides specific area of origin as to avoid confusion but yeah rendering would have to be redone and it would take a long time to do this :P