I agree that DCA needs a cohesive theme and that it must be executed properly and I agree with your ideas about defining the lands better. They are very much along the ideas I’ve had. I also agree that they should focus on time and place more than on movie themes as I’ve pointed out before. This makes for easier additions of new attractions and more cohesive theming in the long run, thus the success of the basic DL/MK concept.
I actually think that much of the fan community would actually support the parks being merged. With that being said, it’s something that I’m absolutely positive that Dis would never consider. They have a lot of practical reasons why they like to have a park be a certain size with around 30-40 attractions. DL already has more attractions then they believe it should be necessary to staff in one park, so the idea that they would consider making one super-park will never happen.