All credit to the maker of the map, that is pretty cool and very detailed. There is no doubt that I would personally love a theme park like that one (though maybe it's too thrill ride heavy for a Disney park - can't there be an awesome Star Wars dark ride?). Still, I voted for SW Land at DHS because it's just more practical. At this point, I don't think WDW needs a fifth gate, nor do I think Star Wars, as great as it is, can sustain a park alone.
If they did a fifth gate, they could maybe combine certain movie properties, like a park with Star Wars, Marvel, Alice in Wonderland (Burton), Tron, etc. That could maybe work, though I really think that expansions to WDW should be in the "and More" vein as things like DisneyQuest fall now. I think a gigantic Frozen-themed ice skating rink with great theming and treated as a waterpark type admission would be sppectacular and something I would visit for sure.